When a book on Open Innovation starts with a foreword from Henry Chesbrough, you know that you're in safe hands.
We all like this book in our office - there are various post-it notes from different analysts on various pages. I especially like it because it does what it "says on the tin" - it contains advice from leading experts, and contains really digestible information and advice. It's a "pick-up" book (you put it down, then you pick it up again), not the sort of book you read and then shelve. There's a really good list of experts /thought leaders answering key questions on OI e.g. what are the benefits, what are the risks, how to get started, how to measure progress, who do we need?).