Books about crochet patterns benefit immensely from illustrations, so many in print feature such images. Two of these illustrated books include "The Crochet Stitch Bible" and "Stitch Encyclopedia: Crochet."
"The Crochet Stitch Bible" features explanations and illustrations of more than 200 different crochet stitches. These range from traditional to contemporary styles. This book is useful for everyone from the novice to the expert. Additional features of this book include difficulty rankings, information on technique and materials, as well as a stitch identifier. As of February 2015, 104 Amazon reviewers ranked this book at four and half stars out of five. Reviewers have commented that this book is suited to those who love to come up with their own original crochet projects. One of the advantages of this text is the extraordinary detail with which the stitches are explained.
"The Stitch Encyclopedia: Crochet: An Illustrated Guide to the Essential Crochet Stitches" is another picture-heavy crochet reference book. This book is one of series which also features stitches for embroidery and knitting. This book features 64 pages of stitch instruction varying from beginner to season expert levels of difficulty. This text can be purchased from Amazon in both paperback and kindle editions.