Mark Pearl is the author of the Leanpub book Getting Started with Mob Programming: A Practical, Pragmatic & Opinionated Guide for Co-Located Teams. In this interview, Leanpub co-founder Len Epp talks with Mark about his background, Mob Programming, John Oliver's interest in New Zealand politics, the challenges of rugby squad allegiance when you're ane expat, his book, and at the end, they talk a little bit about his experience as a self-published author.