Owning Your Digital Library: Backups, Formats, and Not Losing Books You Paid For

A paper library survives by sitting on a shelf. A digital library survives only on purpose. The purpose takes about an evening to set up.

Download everything, always

A purchase that exists only inside a store's app is a lease with extra steps. Whenever a store offers file downloads — as any store respecting its customers does — take them at purchase time and put them in one place. One folder tree, organized by author or genre, beats every clever app that may not exist in five years.

The 3-2-1 rule, book edition

Three copies (working copy, local backup, cloud or offsite backup), two different media, one away from home. For a library measured in megabytes this costs nearly nothing — the entire written canon of your life fits on the cheapest drive sold today.

Prefer portable formats

Standard EPUB and PDF open everywhere, forever. Files locked to a single vendor's DRM are the ones people lose when accounts close, regions change, or companies fold. Buy DRM-free when you can; where you cannot, keep the store receipts — proof of purchase has resurrected more than one lost library.

Catalog lightly

A simple spreadsheet — title, author, format, source, date — turns a folder of files into a library you can actually browse. Ten seconds per book at purchase; hours saved every time you wonder 'do I already own this?'

You went to the trouble of buying books legally. Go to the small extra trouble of making sure they stay yours.