Ideas for your work
01 / 03A question worth asking
How to fix user interviews that are not teaching you anything
Useful takeaway
Ask about recent behavior.
The Mom Test turns vague praise into evidence you can act on.
Read the ideas.
Give your agent a method to work with.
Follow your curiosity. Click a cover to take a closer look.Drag to rearrange. Click to pick one up.
Explore the libraryBook knowledge, ready for your agent
Give your agent the frameworks, questions, and practical rules inside a good book. Turn them into a better interview, a clearer decision, or a plan you can use.
Ideas for your work
01 / 03A question worth asking
Useful takeaway
The Mom Test turns vague praise into evidence you can act on.
Ideas for your work
02 / 03A question worth asking
Useful takeaway
Kuhn helps you tell normal iteration from evidence that the whole frame is wrong.
Ideas for your work
03 / 03A question worth asking
Useful takeaway
Seeing Like a State shows why plans fail when messy ground truth gets deleted.
Skills in action
A book’s methods.
At work in your next task.
Featured books
startups
How to talk to customers and learn the truth when everyone is lying to you, including your mom.
decision making
A map of the two systems that run your mind and the predictable ways the fast one fools you.
business
A forceful argument that enduring companies create a valuable future others do not yet see, then build a position that competitors cannot easily copy.
collective intelligence
Why large groups of ordinary people outguess experts and the exact conditions under which they stop.
systems
Why grand schemes to improve the human condition fail: they replace messy local knowledge with tidy maps, then mistake the map for the territory.
science
Science doesn't progress by smooth accumulation. It alternates between puzzle-solving within a paradigm and rare, wrenching revolutions that replace it.
strategy
Strategy begins by naming the decisive challenge, choosing an approach to it, and concentrating actions so they reinforce one another.
startups
A method for testing value and growth assumptions through small experiments, cohort evidence, and explicit decisions before uncertainty consumes the venture.
Turn the methods in a book or document into a way to tackle your next task.
Answers from the shelf
Reading note 01 · 3 source books
A value proposition is different only when a user chooses or behaves differently because of it. Use a substitution test, a commitment test, and one observable outcome before polishing the claim.
Read the answerReading note 02 · 1 source book
When user interviews produce vague encouragement, switch from opinions to evidence: ask about recent behavior, constraints, failed workarounds, and concrete commitments.
Read the answerReading note 03 · 2 source books
A guide for founders and teams stuck between persistence and denial. Kuhn gives the crisis diagnostic; Kahneman explains why sunk costs make the truth hard to see.
Read the answerReading note 04 · 2 source books
Make plans resilient by naming what the model omits, preserving local knowledge, using reversible steps and slack, and defining evidence that can revise the plan.
Read the answerReading note 05 · 2 source books
Protect group judgment by collecting independent views, preserving local information, separating evidence from discussion, and using an explicit aggregation and decision rule.
Read the answerReading note 06 · 2 source books
Replace verdict-seeking pitches with recent behavior, costly commitments, base rates, disconfirming evidence, and a written rule for what would change the idea.
Read the answerYour reading life
See the books, answers, and patterns you return to.
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Explore insights and see the books and ideas you return to for the situations that keep coming up.
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A little more to know
A skill gives an agent instructions for applying a book’s methods: useful frameworks, decision rules, checklists, and mistakes to avoid. Supporting reference notes provide context for the task.
Open a book and choose Copy prompt for your AI. This copies the book notes and instructions to your clipboard. Paste them into your AI chat and describe your task. For an uploaded book, the prompt also includes the generated skill and references. No installation is needed for this copy-and-paste flow.
One searchable upload creates a readable book artifact, a reusable skill with supporting references, and a cover. Keep the upload dialog open until saving finishes; processing then continues in the background. Your files and results stay private to your account.
Public book pages are editorial digests with agent prompts. The fuller downloadable skill package is generated from your own uploaded source. Public pages do not contain the original book’s full text.
Yes. An uploaded book has Download book & skill, which exports a ZIP with the book artifact, SKILL.md, reference notes, patterns, a cheatsheet, and a glossary. Add those files to an agent that supports skills, or use Copy prompt for your AI for a single task.