Excellent portable guide
When I bought this book, I needed a quick and dirty reference to religious symbolism in western art--I was pleased and surprised to find out that it's small, lightweight, and therefore portable when I visit museums. (Why don't more publishers consider weight and size when they print books for travelers? Lonely Planet and DK, I'm looking at you.)

Its easy size belies the incredible amount of useful information it contains; there are fourteen sections covering everything from the significance of certain animals to religious garments to a brief hagiography for commonly portrayed saints. About one-third of the book is a set of reproductions (sadly b&w in this edition) of famous renaissance religious paintings. There's no discussion or explanation accompanying the paintings--which is the only thing I don't like about the book.

And if you read one of the earlier reviews and are wondering about the chocolate mouse in Rosemary's Baby, it's a reference to mice as a symbol of evil because of their destructiveness.

Great reference guide
I use this book frequently, especially when studying art books of Christian art as well as during a recent Bible study of the Book of Exodus. This was an invaluable guide to the symbolism used in art and the various meanings. For example, when studying the symbolic meaning of the priests robes of the Old Testament, the meaning of the pomegranate for the OT and NT is significant. In the OT, the pomegranate stood for the 613 Mosaic laws (the pomegranate was thought to contain 613 seeds). In the NT, the pomegranate is the symbol for the resurrection of Christ. The Hebrews believed following the law led them to God. For the Christian, belief in Jesus' death and resurrection leads to God! Enjoy this read.

Beginning reference for lives of saints and iconography
Although not encyclopaedic, this book, first published in 1954, is indispensable to the art history, religious art, iconographic, and religious lives student. The essays are of significant depth without excessive volume, and the illustrations, although of a limited period (Medieval through Renaissance), are pungent enough from which to learn. Two limitation I will remark:
There are no representations from Eastern- or Byzantine- iconography.
The illustrations are all black and white.

Great
I study Art history, and christian art. This book primarily focuses in on Renaissance paintings and thier symbols. I found it to be useful and detail orientated. A very good reference book.

A must for art history students
If you are an art history student, this book is an absolute must. While there are many books that contradict one another when it comes to symbolism, this book is one that commonly agrees with others I have read or consulted.
For as inexpensive as this book is, you cannot afford NOT to get this book!