Doing some research for a nonfiction book I want to write, I stumbled across this book on Amazon.com. The book is by Janetta Rebold Benton. More information on her can be found here. She is a Fullbright Scholar and art historian.
The book that caught my interest is Holy Terrors: Gargoyles in Medieval Buildings. Below is the description from Amazon. Seems like a must read to me for any gargoyle lover.
Book Description
The true gargoyle is a waterspout, an architectural necessity that medieval artisans transformed into functional fantasies. In clear, lively language, the introduction to Holy Terrors explains everything that is known about the history, construction, and purposes of these often rude and rowdy characters. The three chapters that follow are devoted to the gargoyles themselves, in human, animal, and grotesque form. Delving into their sometimes funny, sometimes mysterious meanings, Dr. Benton's entertaining text puts these irresistible creatures into the context of medieval life, and she provides a guide to gargoyle sites, so that readers can visit their favorites. This is, amazingly, the first book for adults to provide a full overview of medieval gargoyles, and it is bound to increase the already numerous legions of gargoyle admirers.