Ries book is very interesting, and Running Lean is more product focused and pragmatical[1], and less about the theories behind it. And the book was a result of

Ries book is very interesting, and Running Lean is more product focused and pragmatical[1], and less about the theories behind it. And the book was a result of testing Lean Startup Ideas, and taking a very skeptical look into it (which is, in itself, a very lean approach). For me though, it seemed like a refreshing refocus and evolution of Agile into a more customer centric product development[2] [1] http://www.runningleanhq.com/ http://www.runningleanhq.com/ [2] http://www.slideshare.net/HackerChick/lean-startup-how-development-looks-different-when-youre-changing-the-world-agile-2011 http://www.slideshare.net/HackerChick/lean-startup-how-devel...