First, I have not read the book in this form. I read a free version online. There might be some differences; I don't know.

Anyway-
I was pointed to this book while arguing that intellectual property is needed to overcome a public goods problem. After reading it, I've moved from confidently supporting minimal IP rights to tentatively advocating their abolition.

The authors provide plenty of evidence and a few intriguing theoretical arguments to bolster their position.

It definitely won't be the last word on this subject, but it will widen the debate and point it in new directions. Very much worth reading, if you're interested in IP issues.