Sign in

Unshelve

what the page begins, the road makes real

Bought but never opened.
Started but never finished.

Your shelf, dealt back to you — start anywhere. Three chapters on your forgetting curve; read one, and your notes come back as recall cards.

The demo deck · 2 sample books · 20 chapters

Meditations

Book 1

Philosophy~24 min

Never dealt in this demo yet

Start with a stocked shelf

— add your own books when you're ready. The two books in this deck are already on it.

EXAMPLE

Recall card · days after reading

“The best kind of revenge is, not to become like unto them.”

Meditations · Book 6 · a saved highlight

Days later, the card asks

What did Marcus call the best kind of revenge?

Answering schedules its next return.

Notes and highlights return as cards like this, spaced along your forgetting curve.

See the full loop

The deck above is the real dealing engine. What it can't show: upload your own book, read, leave a one-line note — and days later the note comes back as a card. Twenty seconds, silent.

A hand slides a cloth-bound book into a gap on a small shelf of books
1 · add a book
An open book with a ribbon marker, a cup of tea beside it
2 · read one chapter
A nib pen underlining a single line on the page in red
3 · leave a one-line note
A recall card with a red top rule propped against two books, a calendar with days crossed off behind it
4 · days later it returns
The full loop — a 20-second silent recording lands in this slot.

Why dealing beats willpower

Ebbinghaus' forgetting curve plotted as savings in relearning on a log time scale: 58.2% at 20 minutes, 44.2% at 1 hour, 35.8% at 9 hours, 33.7% at 1 day, 27.8% at 2 days, 25.4% at 6 days, 21.1% at 31 days — memory fades fastest right after the book closes (Ebbinghaus 1885; replicated by Murre & Dros 2015)

Forgetting is the default.

Ebbinghaus measured it on himself in 1885; a 2015 replication found the same shape. Unshelve schedules each book's return against this curve — the longer one sits, the harder it knocks.

Ebbinghaus (1885); replicated by Murre & Dros (2015), PLOS ONE 10(7).

Testing beats re-reading.

A week out, the tested group kept half again as much as the re-readers. So your notes come back as questions, not as text to skim.

Roediger & Karpicke (2006), Psychological Science 17(3), 249–255.

61%

retained a week later by the tested group

vs 40% for re-readers

63%

on the delayed test after mixed practice

vs 20% for blocked practice

The uncomfortable practice wins.

Mixed practice feels worse while you do it — and wins the delayed test by a wide margin. Random chapters from across your shelf are that mix, scattered on purpose.

Rohrer & Taylor (2007), Instructional Science 35, 481–498.

Start with a stocked shelf

— the shelf comes stocked; the evidence comes cited.

This idea is thirty years old

Incremental reading has worked since the 1990s. It has just never been usable. SuperMemo proved the method; Kindle resurfaces highlights; Readwise tunes their frequency; interleave.app interleaves the extracts you clip. Unshelve's bet: skip the clipping — deal whole chapters of your own files (EPUB, PDF, Markdown), in a web app that follows you onto every device.

SuperMemo1990sKindle Daily ReviewReadwiseinterleave.appextractsUnshelvewhole chapters

From the person building it

Unshelve just launched, and it's built by one person — for my own shelf first, because my books were losing to my feeds. Two things I can promise: every claim on this page carries its citation, and you'll find no testimonials below because there are no users to quote yet. You'd be early. That's the honest pitch.

Q&A

Where do my files come from?
Anywhere you can get DRM-free files: publisher-direct stores (O'Reilly, Manning, Pragmatic Bookshelf), Standard Ebooks and Project Gutenberg for the classics, plus the PDFs already on your disk — papers, reports, manuals. Books locked inside Kindle or Apple Books can't come in — that's a DRM wall.
What formats does it read?
EPUB (best — clean chapters, small files), PDF (rendered as-is, nothing flattened), and Markdown or plain text.
Is my library private?
Yes. Files live in your own account's storage, readable by you alone. There is no public shelf and no feed of what you read.
What does it cost?
Free right now, while it's early — no card, no trial clock. And your notes stay yours either way: one click exports everything as Markdown or an Anki file.
What did the demo above actually do?
It ran the app's real dealing engine over this page's two sample books, entirely in your browser. No account was created and nothing was stored — a note you leave in the demo lives only on this page, and is gone when you close it.
Start with a stocked shelf

— add your own books when you're ready.