Hi, I have a question about First Editions and reading what printing edition a book is. Here is an example: 93 94 95 96 97 RRD 10 9 8 7 6 5 4 3 2 1 -- Is this a First Printing because of the "1" or is it a "93rd" printing? If it's a straight number line it's easy to figure out but I'm never certain of the above example. And what does the RRD mean? Any help would be greatly appreciated. Jeri