Review: Understanding ISBN's
Rating: 5 out of 5
Date: 02 25, 2013
This book contains more than one would ever want to know about ISBN's.  It surprised me because it's quite interesting.  It may be most useful to authors and publishers in providing the pros and cons of different options for obtaining ISBN's.  If this is a subject you'd like to understand better, I recommend this book.  It's certainly worth the small investment.