Guts!: Companies that Blow the Doors off Business-as-usual

A truly inspirational book. I literally thought of 3 to 5 new ideas for my own business every time I picked it up.

It is a little “self-helpish” and I did have to read it for a class, but it was so worth it. If you're running a business or mulling over whether to start one, you MUST read this book.