Shape Up: Stop Running in Circles and Ship Work that Matters
Ryan Singer, Jason Fried
This is an online web book about how Basecamp does their work.
"This book is a guide to how we do product development at Basecamp. It’s also a toolbox full of techniques that you can apply in your own way to your own process.
Whether you’re a founder, CTO, product manager, designer, or developer, you’re probably here because of some common challenges that all software companies have to face."