50+ Lean Validation Experiments
A new business idea always rests on assumptions, and the expensive ones are the assumptions nobody named. This report gives you the method for finding them and more than fifty experiments to test them cheaply, before the damage is done.

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75 pages · PDF and online- A way to surface the assumptions your idea actually depends on
- More than fifty experiments, with the question each one answers
- A cycle that ends in a decision: learn, run again, or kill it

Every new idea rests on assumptions. The expensive ones are unnamed.
Without evidence gathered before the build, a business concept carries risk nobody has priced. Mapping the assumptions first, then testing the ones that would sink the idea, is what makes it cheap to be wrong.
The point is not to be right early. It is to be wrong cheaply, on purpose.
A method, and more than fifty ways to run it.
Map what the idea depends on, design a test that answers it, run it, and then decide: learn and continue, or kill it and start again.
Know what to test, and in what order
- 1Assumption mappingSurface what the idea quietly depends on
- 2Experiment designWhat type of assumption, and what evidence you hold
- 3Run experimentsThe cheapest test that answers the question
- 4Learn, cycle or killA decision, not a report
Pick the cheapest test that answers your question
- 5The Mom TestInterviews that survive politeness
- 6Landing pageInterest, before anything is built
- 7Smoke testDemand for something that does not exist yet
- 8Fake buttonWhat people click when nothing happens
- 9ConciergeDeliver it by hand before you automate
- 10Wizard of OzA working product with people behind the curtain
- 11Letter of intentA signature instead of an opinion
- 12Pre-orderThe only validation that carries money
Built to be run, not just read.
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The lean validation method, an assumption mapping canvas, and more than fifty experiments to run. Free, and in your inbox in a minute.

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