Yesterday's post got me thinking, and I realized that I know of a bunch of books that cover intelectual property from all angles. I'm still trying to find the original source for most of them, so here is one to whet your appetite.
Dr. Lawrence Lessig is a Professor of Law at Harvard who is a leading expert on IP. He has written numerous books, articles, papers, and legal briefs on the topic. He has released 4 of his books under CC. You can find them on his blog.