From three design partners at Google Ventures, a unique five-day process--called the sprint--for solving tough problems using design, prototyping, and testing ideas with customers.

Jake Knapp is cofounder and general partner at Character Capital and a New York Times bestselling author. Previously, he helped build Gmail and Microsoft Encarta, cofounded Google Meet, and was a partner at Google Ventures. He lives on Orcas Island in Washington state.