I recently finished Crush It by Gary Vaynerchuk. My first comment, it is a really good book. I really enjoyed it. One of the things I liked to most about it, which is the same thing I like about Mr. Vaynerchuk to begin with, is his style is very real and straight forward. I also really enjoyed how positive Gary is in everything he does and how great he is at inspiring people. It really is one of his greatest talents.
The book is about the power of personal brands and how to create them using social media. He starts by telling his story, which is great. Then he goes into talking about how, in culture that social media has created, you can monetize any passion. The best part about the book is that it is equal parts inspirational self-help (which I think can be valuable when done right) and practical guide.
But then, we would expect nothing less from Gary.
I am adding this to the Guru reading list, but with a caveat. It really is a designed for a sole proprietor or a lifestyle type business. If you run a larger scale enterprise, there might be better inspirational only books. Let your marketing department handle the social media stuff. But this would be a good guide for you to hand them.