Peter Armstrong is the co-founder and CEO of Leanpub. He has almost two decades of experience in software, half of it as a developer at Silicon Valley startups. He founded Ruboss in 2008, and created Leanpub with Scott Patten in 2010.

Peter is also the author of 7 books: Yoshidaguchi, Your First Trip to Japan, The Markua Specification, Programming for Kids, Lean Publishing, Flexible Rails and Hello! Flex 4. He has a BSc in Computer Science and Psychology from the University of Victoria.

Peter coined the term "lean publishing" to describe the act of self-publishing an in-progress ebook. Leanpub was created based on the principles of lean publishing. He lives in Victoria, BC with his wife and son.