This topic is purposely too general. Because, I don't want to miss out books like "Guerrilla Marketing", which gave an overview of marketing in 3 days for me. There were books about Behavioral economics I finished, which were so helpful, eventhough it doesn't have immediate effect on my business.<p>So, the general question is, what books were useful to you in building your business.
In no particular order:<p><i>The Art of the Start</i> - Guy Kawasaki<p><i>The Four Steps to the Epiphany</i> - Steve Blank<p><i>The Lean Startup</i> - Eric Ries<p><i>Blue Ocean Strategy</i> - W. Chan Kim and Renee Mauborgne<p><i>Crossing the Chasm</i> - Geoffrey Moore<p><i>The 22 Immutable Laws of Marketing</i> - Al Ries & Jack Trout<p><i>Positioning</i> - Al Ries & Jack Trout<p><i>Repositioning</i> - Jack Trout (with Steve Rivkin)<p><i>Differentiate or Die</i> - Jack Trout (with Steve Rivkin)
I don't think there is an specific list that fits all entrepreneurs, but this is the list that has helped me a lot on getting things up and running:<p>* The Lean Startup<p>* Start Small, Stay Small: A Developer's Guide to Launching a Startup.<p>* Startup@Cloud: 33 tips for running your company using cloud-based software.