The Personal MBA (master the art of business) by JOSH KAUFMAN

A world-class Business Education in a single volume. 

Getting an MBA is an expensive choice --one almost impossible to justify regardless of the state of the economy. Even elite schools like Harvard and Wharton offer outdated, assembly-line programs that teach you more about PowerPoint presentations and unnecessary financial models than about what it takes to run a real business. You can get better results (and save hundreds of thousands of dollars) by skipping business school altogether.