Purchased the day of its release I've read 80% of the book. I'm amazed a lot of ideas that I thought I knew in marketing in a new light. Personally I do not have the beginner level, I think, is the target of the work. Despite that, I loved the "practical" side of the book and especially the tips to optimize campaigns. As such chapters 17 and 18 on the analysis and optimization seemed to me the most interesting and most useful. I highly recommend this book.
