A Simple Book for Smart People
Problem Solving 101 started out as a simple guide to teach Japanese schoolchildren critical thinking skills. But it quickly became an adult bestseller, thanks to the powerful effectiveness of Ken Watanabe’s problem solving methods.
The tools in this book come from the author’s experience as an elite McKinsey consultant. But you don’t need an MBA or complicated computer software to use them. You’ll learn how to broaden and organize your thinking about a problem, so that more possible solutions become clear.




