‘Lean Startup’ author reveals his one regret about his bestselling book — and how his new one fixes it

“Lean Startup” author Eric Ries, left, discusses his new book “Incorruptible” with GeekWire’s Todd Bishop at Seattle Flow Startup Day 2026. (GeekWire Photo / John Cook) When Eric Ries wrote his landmark book “The Lean Startup,” published in 2011, the introduction ended with a bold statement: “The Lean Startup movement seeks to ensure that those of us who long to build the next big thing will have the tools we need to change the world.” Fifteen years later, Ries acknowledged to a room full of sta