The 'hump' in Amazon availability of books first published just before the Copyright Wall suggests a pretty big reduction in surplu...

Paul Heald discusses his work on copyright and the public domain with Mercatus's Jerry Brito . I really enjoyed his talk at Canterbury l...

Paul Heald's excellent graph has brought commentary from all over the web; it's been fun watching where it's popped up since he...

Paul Heald  demonstrated the effect of the stagnant US copyright wall in seminar at Canterbury last week. Recall that books published thro...