ReWork: Change the Way You Work Forever

I read it in a single sitting: very interesting and concise.

What I found most interesting is the authors' (37signals, the creators of Ruby of Rails and the company behind Basecamp) point of view, which is antithetic to many other books about running a business. Among other things, they value serving a niche of customers really well over making compromises to accommodate a bigger audience; they value organic, sustainable growth over explosive, VC-funded growth.