The Four Steps to the Epiphany
by Steve Blank
The book that started lean startup: customer discovery, customer validation, customer creation, company building. Dense, badly edited and foundational; Ries's Lean Startup is the popular version of this.
Read it if…
you want the original customer development methodology.
See the book →
Skip it if…
you want a readable version; see The Lean Startup.
Try instead: The Startup Owner's Manual →
Three things you will actually use
- Get out of the building.
- No business plan survives first contact with customers.
- Validate before you scale.
Do this first
Read the customer discovery chapter and go talk to ten customers.
Our verdict
Where lean startup began.
See the book →
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