Eric Ries applied Lean thinking to startups. He says the biggest waste in startup originates from uncertainty: You do not know what to build (Problem-Solution fit) and if there is a market for it (Product-Market fit). Therefore, Lean Startup proposes to systematically reduce uncertainty with validated learning.
- The Lean Startup - Eric Ries
- Running Lean - Ash Maurya: A practical guide to implement Lean Startup principles.