I think Sensational Knitted Socks is one of the BEST sock books out there. I
this book! There are lots of pattern options, and the sizing charts are great! The way the book is laid out is really neat--you find a pattern (they are based on 4 stitch, 6 stitch, etc. repeats), and then it tells you how many stitches to cast on for the size you're making. It's just a great book.