Rework is a fabulous book by those clever chaps at 37signals. A jumbo collection of short essays on how they do business. Above you can see my notes on each chapter. A condensed and concentrated version of the big takeaways which I thought important.
ANOTHER UPDATE : Check out the redux/remixed version Rich Gould did below—thank you sir.
ANOTHER UPDATE : Another remixed version by Kenneth Svenningsen—fantastic!