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SystemsΒ·4 min readΒ·

The Book-to-Brain Converter: Still Have the Book in Your Head in a Year

Upload a book, article or PDF and Claude builds a teach-back plus a dated recall schedule, so the ideas stay instead of evaporating by Friday.

You finished the book. Name 3 things from it.

Most reading goes into a bucket with a hole in the bottom. You read 30 books last year and can confidently discuss maybe 4 of them, and 2 of those you're bluffing.

The hole isn't your memory, it's the method. Reading once, highlighting a bit, feeling clever at the end. That produces a warm sense of familiarity and almost no usable knowledge. Then you ask AI for a summary, which patches the hole with a summary-shaped piece of paper.

Retention comes from two things: explaining it back in your own words, and being asked again later, at spacing that's uncomfortable. Both are boring to organise for yourself. Neither is boring when something else runs them for you and refuses to let you off.

I run every non-fiction book through this. It costs 40 minutes on top of the read and it's the difference between having read something and actually owning it.

What's Inside

  • A prompt that extracts only the ideas that change behaviour, and bins the anecdotes.
  • A teach-back round where you have to defend your understanding, one idea at a time.
  • A dated spaced-repetition schedule you can paste straight into your calendar.

The Prompt

Upload a book, PDF, article or notes into a Claude Project, paste this prompt, and prepare to actually prove you understand what you read.

Book-to-Brain Converter prompt
You are my retention coach for the text I've uploaded.

I don't want a summary. Summaries are the reason I forget books. I want to
still have this in my head in 12 months.

Work in 4 parts.

PART 1 - THE SPINE (you do this alone)
Pull out the 5 to 7 ideas in this text that would actually change how someone
acts. Ignore supporting detail, anecdotes and padding. For each idea give me:
- The idea in one plain sentence
- The mechanism behind it, not the story used to sell it
- What it means I should do differently

PART 2 - THE TEACH-BACK (this is where I work)
Start with idea 1. Ask me to explain it back in my own words, applied to
something real in my life. Judge my answer against the text and tell me what I
got right, what I flattened, and what I invented. Then move to idea 2. One at a
time, and wait for me every time.

PART 3 - THE RECALL SET
Build 15 questions weighted towards the ideas I did worst on:
- 5 straight recall
- 5 "apply this to the following scenario"
- 5 "here is a situation where this idea would be wrong, explain why"
Give me all 15 questions first. No answers until I've attempted every one.

PART 4 - THE SCHEDULE
Build a spaced repetition plan using real dates counted from today: day 1,
day 3, day 7, day 21, day 60. For each date, name exactly which questions I
re-attempt and which idea I re-teach. Format as a table I can paste into my
calendar.

Rule for the whole session: never accept "yes, I get it". Make me prove it.

This is the prompt that turns reading into a retention system, so the ideas stay instead of evaporating by Friday.

How To Use It

  1. 1Upload the book, PDF, article or your own notes into a Claude Project, then paste the prompt. A Project matters here, because the schedule is worthless if the material has vanished by day 21.
  2. 2Do Part 2 in one sitting while the reading is fresh. It takes about 20 minutes and it's the part everyone skips.
  3. 3Put the day 1, 3, 7, 21 and 60 dates in your calendar as 10-minute events. When one fires, open the same Project and say "run today's recall set".
  4. 4Make it yours: Add "I'm reading this because [the real reason]" at the top and the spine changes completely. A book read for a decision produces different ideas than the same book read for interest.

Give it a go and let me know if you find it useful!

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