Choosing what to keep: favorites, deleting, and a selection routine
A way to choose: mark the photos you would most miss, delete only the obvious misses, know how long deleted photos can be recovered, and write down in one sentence what counts as a keeper.
- Start here: the essentials
- Deciding what matters
- Favorites first
- What to delete without much thought
- How deleting works
- A routine that repeats it
- When deleting is hard, and photos that are not only yours
- The research, the practitioners' piles and appraisal
- See it: Nadia and Ruth
- Practice: one month
- Your photos
- Check your work
- Knowledge check and scenario
Start here Essentials
For a first pass, this chapter asks you to go through one month or one event: mark the photos you would most miss, delete only the obvious misses, and write one sentence about what counts as a keeper. Nothing else has to go.
- Pick one month or one event and mark as favorites the photos you would most miss. On an iPhone that is the heart; in Google Photos, the star (favorites first).
- Delete only the obvious misses, exact duplicates and old screenshots. Leave anything you hesitate over (what to delete).
- Check that the deleted items sit in Recently Deleted or Trash. Leave them there until your backup has caught up (how deleting works).
- Write in one sentence what counts as a keeper, on the plan sheet (deciding what matters).
Minimum time: about 30 minutes for one month. Done when: one month has favorites marked, the misses are deleted, and the keeper sentence is on the plan sheet.
Deciding what matters Understand
The Library of Congress's advice on personal photos has four steps, and the second is to decide which photos are most important. Its page says you can pick a few photos or many, and that where there are several versions of an important photo, you save the one with the highest quality (Library of Congress, Keeping Personal Digital Photographs). It does not say to delete the rest, and it does not say how to choose. The choosing is yours.
Archivists have a word for this work. Appraisal, in the Society of American Archivists' dictionary, is identifying which materials have enough value to be kept, and the dictionary quotes the principle that appraisal is about significance, not monetary value (SAA Dictionary of Archives Terminology, appraisal). The dictionary is written for archives choosing what to accept, not for a family looking at its phone. We borrow the idea, labeled as our adaptation: a photo's worth to you is what it shows and what it means, not how good it looks. This manual's adaptation A blurred photo of a grandparent's last birthday can matter more than a sharp sunset.
The keeper sentence
A keeper rule is one sentence that says what you keep. Writing it turns hundreds of small decisions into one. It goes on the plan sheet's "What counts as a keeper" line (Library plan), in your own words. Some examples:
| A keeper sentence | Who it suits | What it leaves in |
|---|---|---|
| "I keep every photo of people, and the best one or two of places." | A library that is mostly family | Most of it; trims scenery |
| "I keep anything I would show someone, and anything with a face in it." | A large phone library with many tries per moment | The best of each set, all faces |
| "I keep everything except obvious misses and old screenshots." | Someone who would rather not choose yet | Almost all of it |
| "For Mom's photos, I keep everything until my brother and I have both looked." | An inherited collection | All of it, for now |
None of these is better than the others. The sentence settles which photos you mark and which you leave; it does not set a number. This manual does not say how many photos to keep or how many to delete, because no source we found supports a number. Preference
Favorites first
This manual's default is to choose by marking what you want, not by hunting for what to delete. A favorite is a photo you have marked with your app's heart or star, so it shows up in one place. Marking favorites first, and deleting only the obvious misses, is the approach this manual takes. This manual's convention
Two small studies point the same way. In a study of ten people who tried four phone apps for organizing photos, participants found marking photos (voting) easier and more enjoyable than deleting them, and found deleting frustrating (Zürn and colleagues, CHIIR 2019; we read the abstract). In a study of 18 parents in the UK, 11 used a favorites folder, holding about 9 percent of their photos; but when they were asked to find a photo, they searched their whole collection, not the favorites (Whittaker, Bergman and Clough, 2010, author manuscript). The authors suggested tools that encourage marking the good photos over deleting the rest. Both studies are small, and the second is from before smartphones. Neither shows that favorites are looked at more often later.
So favorites do two jobs: they let you find the photos that matter fast, and they make a short list to share, print or caption first. The rest stay in the library, findable by date. Marking costs nothing and can be undone with a tap; deleting is final once the recovery window has passed.
How to mark favorites
| App | How you mark one | Where they gather | What the maker's page says |
|---|---|---|---|
| Photos on iPhone | The heart on an open photo | In iOS 26, the Favorites collection is in the Pinned collection under Collections by default | Apple's iOS 26 article gives the Favorites location. Apple's iOS 27 guide pages we read do not describe the heart, so look below an open photo on your own phone |
| Photos on iPhone (iOS 27) | Star ratings from 1 to 5, once you turn on Show Ratings Controls (Collections, your account, then Show Ratings Controls) | Filter the library by Rating | Apple's iOS 27 guide describes ratings as a way to find your favorite shots |
| Google Photos | The star | A Favorites folder | Google's page on syncing favorites with Apple Photos calls them "favorite (star) photos"; starred photos and Apple's hearted ones can sync both ways from an iPhone |
| Folders on a computer | No shared mark | A list of file names on the plan sheet, or an album in whichever app you view the folders with | Not applicable |
Sources: Apple, Find your Favorites and albums in Photos (iOS 26, published September 15, 2025); Apple's iPhone guide, Apply star ratings (iOS 27); Google Photos Help, Sync your favorite photos with Apple Photos. Product-specific
In a folder library, do not copy favorites into a separate "best" folder of full-size files. That makes a second copy of each, which is the duplicate problem Duplicates describes. Mark them in an app, or list them. Preference
How many favorites
As many as you would most miss. A month of a toddler's life might give twenty; a month of commuting might give none. The parents in the 2010 study marked about 9 percent, which is a description of 18 people, not a target.
What to delete without much thought
This manual's list of what can go in a first pass is short, on purpose. This manual's list
| Delete | What it looks like | Check first |
|---|---|---|
| Obvious misses | Pocket shots, a black or blurred frame, the inside of a bag, a photo of the floor taken by accident | Nothing; if you have to look twice, it is not obvious |
| Exact duplicates | The same file twice | That the other copy is there; Duplicates tells exact copies from near ones |
| Old screenshots | A boarding pass from last year, a map you no longer need, a code that has expired | That it is not the only record of something: a receipt, a message from someone who has died, a recipe |
On an iPhone in iOS 27, the library's Media Types filter shows only screenshots; Apple's guide also lets you hide screenshots from the library view without deleting them (Apple's iPhone guide, Sort and filter the photo library). In iOS 26, Apple's article lists Screenshots among the default Pinned collections. In other apps, look for a screenshots view or device folder; where your app has none, sort by date and look.
What to leave for now
- Anything you hesitate over. Hesitation is the sign to keep it. You can come back next year; a deleted photo cannot come back after its recovery window.
- Several tries at one moment. Keeping the best of a burst is fine, and so is keeping all of them until a later pass. Mark the best as a favorite.
- Other people's photos. Photos that someone sent you, or that came from a parent's collection, wait until the people involved have had a say (photos that are not only yours).
- Photos you might need as records. A photo of a document or a damaged item may be the only copy of it.
A reader who deletes less risks less. The cost is a larger library and more storage, which the space calculator puts in numbers.
How deleting works
A deleted photo does not disappear at once. Most apps move it to a holding place for a set time, and only then remove it for good. The recovery window is that time. Know your app's before you delete anything.
| App | Where deleted photos go | How long | What else the deletion reaches |
|---|---|---|---|
| Photos on iPhone (iOS 27 and iOS 26) with iCloud Photos | Recently Deleted, under Utilities in Collections; locked with Face ID, Touch ID or passcode by default | 30 days, then removed from the iPhone, iCloud and other devices | Every device signed in to the same Apple Account with iCloud Photos on |
| iCloud, over the storage limit | Nowhere | Removed at once | Every device |
| Photos on Mac | Recently Deleted, below Utilities | 30 days | Deleting from an album removes the photo from that album only. Apple says Time Machine may recover items deleted permanently |
| Google Photos | Trash | 30 days | The phone's own copy, every device with backup on, albums and shared albums; not Gmail, Drive or YouTube |
| iCloud Shared Photo Library | Recently Deleted | 30 days | Every participant can delete; Apple says only the contributor can delete it from Recently Deleted |
Sources: Apple's iPhone guide, Delete or hide photos; Apple, Manage your iCloud storage; Apple, Delete or recover photos on Mac; Google Photos Help, Delete photos; Apple, iCloud Shared Photo Library. Product-specific
Three things the table means
A synced library deletes everywhere. With iCloud Photos on, Apple says a photo you delete is deleted on all your devices; Google says deleting in the app deletes the device's copy and, with backup on, the copy on every device. A delete on the phone is a delete in the cloud. That is why the cloud library is not a backup (Backups).
The window can be skipped. Apple's iCloud storage page says that if you are over your storage limit, deleted photos are removed immediately, with no stay in Recently Deleted. Google says that when the Trash is full you are asked to delete permanently, and that Google Takeout does not recover permanently deleted items. Check your storage before a clear-out, not after.
Older advice says 60 days. Some guides still say Google keeps deleted photos for 60 days. Google's current page says 30 days (Google Photos Help, Restore deleted photos). Go by your app's current help page.
Hiding and archiving are not deleting
Apple's Hide moves a photo to the Hidden collection, out of the library view. Google's Archive hides a photo from the main view and leaves it in albums, search and device folders. Both are ways to clear the view without losing anything. Product-specific
A deleted photo is gone after the recovery window, and sooner if you are over the iCloud limit or empty the trash. Leave deleted items in Recently Deleted or Trash until a backup dated after you chose your keepers exists, and check the backup holds the favorites. This chapter gives a way to choose, not a number to keep or delete.
A routine that repeats it
A first pass on one month is the method. The routine is doing it again, while the month is still fresh. This manual's interval is once a month, or after each event worth a folder. This manual's convention The routine sheet lists the monthly items with a date for each:
- Bring in the month's photos to the master library or the month's folder.
- Mark favorites by your keeper sentence.
- Delete the obvious misses, exact duplicates and old screenshots.
- Caption the keepers that need it (Dates, captions and people).
- Check the backup ran before the recovery window on this month's deletions closes.
A month of phone photos takes a short sitting; a year left alone takes a weekend. The order matters in one place: favorites come before deletions, so a tired thumb does not delete something you meant to keep. The yearly items and the full routine are in Routines and handing on.
The backlog
Years of unsorted photos are not a debt to pay off. Start with this month, so the backlog stops growing. Then, if you want to, take one past month at a time, starting with the years that matter most. The photos you do not get to stay in the library, findable by date. Preference
When deleting is hard, and photos that are not only yours
Many people find it hard to delete photos, and that is a common experience, not a failing. In interviews with 45 adults about their digital files, including photographs, researchers found over-accumulation and difficulty deleting among the themes (Sweeten, Sillence and Neave, 2018). Interviews with 23 people in another study described a range, from keeping everything to keeping as little as possible (Vitale and colleagues, CHI 2018; we read the abstract). Both are interview studies of small groups. They describe what people do; they do not say what anyone should do.
A large library is not a diagnosis. Research on "digital hoarding" is mostly interviews and questionnaires; one study of 167 people found that higher scores on a digital hoarding questionnaire went with more difficulty finding items, which is a correlation, not a cause; and the one clinical case in the literature we found is a single person (Sillence and colleagues, 2023; van Bennekom and colleagues, 2015). The number of photos you have is not, by itself, evidence of anything about you. This manual does not give medical advice; if keeping or deleting causes you real distress, that is a question for a doctor, not for a photo manual.
Photos that are not only yours
A parent's or relative's collection is not culled by one person alone. A photo that looks like a miss to you may be the only picture someone else has of a person or a house. Before deleting anything from an inherited collection, ask the other people with a stake in it, and keep everything until they have answered. This manual's convention The same goes for a shared household library: in an iCloud Shared Photo Library, Apple says every participant can delete, so agree on a keeper sentence together. Who owns the rights in inherited photos is a legal question for a lawyer, not this manual; Sharing photos says what the Copyright Office says.
The research on photos and memory comes from short laboratory tasks, mostly museum tours and paintings, tested soon after. It does not say whether your own photos help or harm your memory, and it does not say how many photos to take or keep. No study we found shows that a chosen set of favorites is looked at more often than a whole library.
The research, the practitioners' piles and appraisal Go deeper
Does taking photos affect memory?
A line of laboratory studies asks whether taking a photo of something changes how well you remember it. The findings depend on the conditions, and none follows people's own photos over years.
| Study | What people did | What was found | Limits |
|---|---|---|---|
| Henkel, Psychological Science, 2014 | On a museum tour, told to photograph some objects and only look at others | Photographing whole objects went with remembering fewer objects and details; zooming in on one part removed the effect | Instructed photos; tested soon after; photos not reviewed |
| Soares and Storm, Journal of Applied Research in Memory and Cognition, 2018 | Photos that disappeared (Snapchat) or were deleted at once | The impairment appeared even when the photos were gone, so relying on the camera may not be the main cause | Laboratory task |
| Soares and Storm, Psychonomic Bulletin and Review, 2022 | Photographed paintings once or five times, or only looked at them | Impairment with one photo and with five | Paintings; short intervals |
| Barasch and colleagues, Psychological Science, 2017 | Free to choose whether to take photos | People who chose to take photos recognized more of what they saw and less of what they heard | Recognition of visual details; short intervals |
| Yaya and colleagues, Journal of Cognitive Psychology, 2024 | A mock museum tour on smartphones | Impairment when people knew they would be tested; none when they did not | Laboratory task |
| Yu and colleagues, American Psychologist, 2026 | A companion watched someone else take photos | The companion remembered less too; hiding the photo-taking removed that effect | Laboratory and simulated exhibition |
We read each paper's abstract. Taken together, they say that being told to photograph whole objects on a tour went with remembering less of them soon after, that choosing what to photograph went with better recognition of what was seen, and that in one condition no effect appeared. They do not say that taking photos ruins memory, or that taking fewer helps. A separate older study found that reviewing photographs of events watched on video helped people recall them later, and that short verbal descriptions helped as much (Koutstaal and colleagues, Psychology and Aging, 1998). It supports looking back at photos as one way to recall; it does not show that a curated set gets looked at more.
Digital hoarding research and its limits
Sweeten and colleagues interviewed 45 people aged 20 to 52 about personal and work files and found themes shared with physical hoarding: over-accumulation, difficulty deleting and anxiety about both. Vitale and colleagues described a spectrum from hoarding to minimalism in 23 interviews. Sillence and colleagues surveyed 167 people and found higher hoarding scores went with difficulty finding items and distress at possible loss. Van Bennekom and colleagues described one man preoccupied with hoarding digital pictures, with severe interference in daily life, and proposed digital hoarding as a subtype of hoarding disorder. None of this is about ordinary family libraries, and none of it sets a number of photos that is too many.
The practitioners' piles
Professional photo organizers have their own method, and it is one practitioner's method, not research. A 2013 tip from The Photo Managers, a trade association, sorts prints into piles: A for album (the best, to share), B for box (kept in archival storage), C for can (poor-quality or duplicated photos it is all right to part with), and S for stories, which join the A pile; it also suggests holding each photo no more than two seconds (The Photo Managers, The ABCs of Organizing, 2013). A 2023 post from the same association describes A photos as the memories you would mourn most if you lost them (The Photo Managers, The ABCs of Photo Organizing, 2023). The A pile is close to this manual's favorites. The C pile is where the method differs: it makes discarding a pile of its own, where this manual keeps deletion to the obvious misses. The association's pages also carry figures with no source given, which we do not repeat.
Appraisal in more detail
The SAA dictionary's entry cites five questions an archivist asks: who made the material and why; the significance and quality of its information; how it relates to other sources; its likely uses and any limits on access; and the cost of keeping it weighed against the benefit. For a family, the third and fifth translate well: a photo that is the only picture of a person or place is worth more than the tenth of a sunset, and keeping costs storage, not much else.
See it: Nadia and Ruth See it
Nadia Brooks is a fictional person, and every fact about her here is invented for this manual. Her iPhone says storage is almost full. iCloud Photos is on, with a 50 GB iCloud+ plan holding 46 GB. She has about 7,800 photos and 260 videos since 2019, about 3,000 of them of her son Theo, who is two.
Known: she is under her iCloud limit, so Apple's 30-day Recently Deleted applies. Deletions on the phone reach iCloud. Her assumption: last month is typical, many tries per moment of Theo, plus screenshots. What she does. She picks last month. She marks the photos of Theo she would most miss with the heart, then deletes the pocket shots and the screenshots of expired codes. She leaves every try of Theo blowing out a candle, because she hesitates. She opens Recently Deleted, sees the deleted items there with the days remaining, and writes the date 30 days on in her notes. Her keeper sentence: "I keep every photo of people, the best of everything else, and no screenshots I no longer need."
Open: whether her drive export, which Backups sets up, has caught up before the 30 days pass; Nadia settles it by checking the drive's newest photo. How much space the month freed is small, and under these assumptions a clear-out of misses will not empty a full phone; One home for your photos covers the phone's space setting.
Ruth Feldman (fictional) has about 31,000 photos in Apple Photos on her MacBook, and two slide carousels of about 160 slides taken by her late husband, Arthur Feldman. Her son David Feldman lives in another state.
Known: the slides are Arthur's photographs, and David is family with a stake in them. Her decision: every slide is scanned and none is discarded; her favorites among the scans are marked, and the rest stay. Open: whether David wants a say before any of Arthur's scans are deleted as misses; David settles it, and until he answers, nothing from the carousels is deleted. Her keeper sentence for Arthur's slides reads: "Keep everything until David and I have both looked."
Free pages that show the settings and the idea:
- Apple's iPhone guide, Delete or hide photos and videos: Recently Deleted, its 30 days, and how to recover.
- Google Photos Help, Delete photos and videos: the Trash, what a delete reaches, and Archive.
- Library of Congress, Keeping Personal Digital Photographs: the four steps, with deciding what matters second.
Practice: one month Practice
Minimum: one month or one event, favorites marked, the obvious misses deleted and checked in Recently Deleted or Trash, and the keeper sentence on the plan sheet. Time: about 30 minutes for a month of phone photos. Materials: the phone or computer that holds the library, the library plan and the routine sheet.
- Check your storage. If an iCloud account is over its limit, deletions skip Recently Deleted; sort that out first.
- Write a draft keeper sentence before you start, so the choices follow it.
- Open the month and mark favorites, from the first photo to the last.
- Go through again and delete the obvious misses, exact duplicates and old screenshots. Skip anything you hesitate over.
- Open Recently Deleted or Trash and check the items are there. Note the date the window closes.
- Revise the keeper sentence if the month taught you something, and write it on the plan sheet.
- Tick "Mark favorites" and "Delete the obvious misses" on the routine sheet, with today's date.
Try the practitioners' piles on one box of prints or one past year. Sort into album, box and stories, and compare the album pile with what you would have marked as favorites. Write on the plan sheet which way of choosing suits you, and keep the "can" pile in the library unless every item is an obvious miss.
Your photos Your photos
Check your work Check your work
Criteria
- Does the month have favorites marked, and can you open them in one place?
- Were the deleted items only obvious misses, exact duplicates and old screenshots?
- Are the deleted items in Recently Deleted or Trash, with a date by which the backup will have caught up?
- Is the keeper sentence on the plan sheet, in your words, in one sentence?
- Did nothing from someone else's collection go without the other people being asked?
- Is the next month's pass on the routine sheet?
Worked example
Nadia's month has favorites marked, the misses and expired screenshots in Recently Deleted with the closing date noted, and her keeper sentence on the plan sheet. The routine sheet has today's date beside the two monthly items. It passes. It does not show that the favorites are backed up yet; that is the check against her drive.
Common mistakes
- Deleting first, marking later. A tired thumb deletes a keeper. Mark favorites first.
- Emptying Recently Deleted or Trash to free space at once. The window is the way back; leave it until the backup has the month.
- Clearing out while over the iCloud limit. Deletions skip Recently Deleted.
- Setting a target number. A quota pushes out photos you would have kept. The keeper sentence decides.
- Copying favorites into a "best" folder of full-size files. That makes duplicates.
- Culling a parent's collection alone. Ask first.
What is still unresolved
Whether the favorites are safe is settled by a backup you have opened a photo from, in Backups. Captions for the keepers are in Dates, captions and people. Sharing the favorites is in Sharing photos. Whether the routine holds is something only the routine sheet's dates over a year will show.