This is a good reference book for crochet. It isn't pretty, but it is clear in the wording with nice line drawings and black and white photographs. This is a book that would be good for a person learning to crochet and experienced workers who are creating garments.
Preoccupied with crocheted clothing, the author advises to practice, practice, practice. While she does cover the many crochet stitches and also broomstick crochet, the author gives instructions on how to design your own crochet clothing.