Gayle is the author and creator the best-selling Cracking the Interview and Career series: Cracking the Coding Interview, Cracking the PM Interview (co-authored with Jackie Bavaro), Cracking the PM Career (co-authored with Jackie Bavaro), and Cracking the Tech Career. Gayle has worked as an engineer for Google, Microsoft, and Apple and is a consultant, and founder focusing on improving tech hiring for both the interviewer and the candidate.