I was a huge fan of Amy Morin's blog post on this topic when it went viral. The moment the book came out, I knew it would be at the top of my reading list. The 13 Things that she refers to are synonymous with success on a business or personal level. Amy gives you the framework to recognize where you stand on the 13 Things, as well as tips and suggestions to improve. I found myself shaking my head occasionally saying - "Yep, I do that." If you are looking for an excellent self-improvement book, this is the one to invest in.