Like Matthew Field, I really loved this article. Since I have, or have had, most of the books mentioned, I wasn't surprised by the choices. I was glad to see Daryl choose Bruce Elliott's Classic Secrets of Magic since that was the very first magic book I ever owned. RK's comments on Cliff Green's book made me get it off the shelf and take a closer look. That's a book I bought back before I had any right owning it, so much of it was wasted on me. I'm better equipped, now, to learn from it.
The thing I really liked about the article was not so much the choices--anyone who does bother to re-read the books in their library is going to find lots of fun things--but how different magicians responded to it. Each magician showed us something of his personality in his choices. Some were open and honest, while others were more vague and secretive. Some went for well-known books, while others preferred more obscure tomes. Some actually answered the question as it was put, while others, I suspect, were less than forthcoming. Harry Lorayne, for instance, mentioned a book that he edited. What a perfectly Harry Lorayne thing to do. I would expect no less from him (and if John Scarne were around to answer the question, I'm sure he would have chosen something from Scarne on Card Tricks :) ).
David Regal did an excellent job, and I hope their will be more articles like this one in the future.