So, how to read a business book:
1. Decide, before you start, that you’re going to change three things about what you do all day at work. Then, as you’re reading, find the three things and do it. The goal of the reading, then, isn’t to persuade you to change, it’s to help you choose what to change.
2. If you’re going to invest a valuable asset (like time), go ahead and make it productive. Use a postit or two, or some index cards or a highlighter. Not to write down stuff so you can forget it later, but to create marching orders. It’s simple: if three weeks go by and you haven’t taken action on what you’ve written down, you wasted your time.
3. It’s not about you, it’s about the next person. The single best use of a business book is to help someone else. Sharing what you read, handing the book to a person who needs it… pushing those around you to get in sync and to take action—that’s the main reason it’s a book, not a video or a seminar. A book is a souvenir and a container and a motivator and an easily leveraged tool. Hoarding books makes them worth less, not more. Seth Godin on how to read a business book. From his blog.