Thanks for the answer Michael.
As a side note, maybe you should have put serial numbers on the book. A BIN, so to speak (Book Idenditication Number). Then those with the first or last ones can be especially proud. 
That was considered, and rejected long ago. First, it presumes there might be some inflated value to an early number versus a later number, or certain numbers, (like #1, or #113). I don't believe there is. By leaving them all unnumbered, they all have equal value. Second, how does one allocate the numbering? It was a task I chose not to take on! Also, I paid extra to have each book sealed at the printer, to preserve it. I would have had to undo all the shrink wrapping, or not bother to do it at all...
I did sign the books that a few (thankfully only a few asked, it would have been difficult to do all of them) asked me to, so there are a few of them personalized in that way.
