This is a rare book: the story of working in a high-growth technology company as an individual contributor. Most stories about these companies are told by or about the founders, or senior executives and leaders. By providing the “bottom-up” view, Kocienda gives a feel for what working at Apple was like for typical employees, especially software engineers.

Kocienda played an influential part in the design and implementation of the first iPhone and iPad keyboards. Through the lens of these projects, he explains Apple’s demo-focused development cycles. It is eye-opening to see how contingent the final product was on so many experiments and refinements.

One memorable software engineering quote from the book is, “When software behavior is mysterious, get more organized.” (p. 128)