CSPD's "mission is to promote research and scholarship on the contributions of the public domain to speech, culture, science and innovation, to promote debate about the balance needed in our intellectual property system and to translate academic research into public policy solutions."
The CSPD
publications site includes
Theft! A History of Music ("The book is a graphic novel (aka 'comic book') laying out a 2000 year history of musical borrowing from Plato to rap").