This book is very convenient for digital start-up, so for start-up which choose the path that not focusing on the digital area, it is quite unhelpful. I warn you.
Eric Ries learns from his own experience in building a start-up, so this is a very good insight for start-up founders out there who want to learn from others who already take the path earlier. Not only it containts previous founder's point of view, which is very important for us (start-up founders), it also discuss the way to build a start-up in the most effective and efficient way. It will help you avoid mistakes tha many founders make in their early time, so you won't learn your mistakes by yourself. It will definitely save your time... a lot.
For digital start-up founders out there, this is your savior!