My apologies for starting us down this road with the question - I wasn't trying to critique nor to stir up any controversy, but was genuinely curious. From what I have gleaned above, it sounds like you may not have violated any rights - based on the issue (no pun intended) with UK magazine copyrights that Cogsy describes. Actually, I suspect that this discussion has clearly revealed that when it comes to copyright, as with so many other things, the exact answer is, "it depends." If something is published in two different venues - a magazine and a book - where exactly does the copyright reside? And is there a difference between the typography and the IP? I have a friend who went to law school a few years ago, and I remember asking him if something (don't remember what) was legal. He quickly answered, "No one knows - it hasn't been litigated yet. Would you like to be the first?" It may be that the answers to the questions we have raised above fall into this same category!