This book is not only a history lesson on copyright, but it shows how big corporate enterprises obtain and used material, through the same methods they now want to deny the general public, in order to get to the powerful presence they are today.Example: Disney using lots of old fairy-tales which were in public domain. And today they fight for everything never to go into public domain in order to keep profit to themselves, while at the same time going after creative use that would expand our culture and art.