This book is a fantastic find! This is NOT a coffee-table knitting book, full of beautiful but silly patterns. This one book has ideas and patterns for knitting almost any sort of sock you'd like: from beginner thick-wool simple socks to advanced extremely fine-weight wool lace socks. Entrelac socks are covered, as well as fleece-lined socks ala Robin Hansen, as well as double-knitted socks (reversible), "turkish socks" (from the cuff down), simple fair isle knee socks, etc.
As a spinner, I appreciated the info. given in each pattern for the type of wool used, as well as the wraps per inch and yardage. This is also an excellent way to use your commercial wool; I would highly recommend this book (at its very decent price) for knitters who never spin as well.
However, I must mention that most of the socks have written directions for a woman adult's sock. If you're already a sock knitter, or if you can follow the suggestions given for altering sizes (not difficult), this won't bother you a bit. Although this is a book of knitting patterns, it is also a perfect collection of inspiring ideas for "thinking knitters" and spinners, who like to create/adapt their own patterns.
I am certainly inpsired by this book, and hope to knit/spin my way through all the patterns.