I would suggest "Sensational Knitted Socks" by Charlene Schurch. This is a wonderful book for beginners: you start with a small "class sock" that takes you through the basics, teaching you to avoid or remedy common trouble areas such as gusset holes and grafting toe stitches. It is also a valuable resource for intermediate sock knitters: with it, you can adjust patterns to fit any size foot with any gauge yarn.
Taken in conjunction with Silver's on-line tutorial mentioned by Mirl56, these are the two most valuable resources for beginning sock knitters!
Knitting is more like tying your shoes than it is like patting your head and rubbing your tummy at the same time.