by Lon D. Lewis is more clinical than the "Feeding and Care of the Horse". This is a great reference for increasing your knowledge and understanding of equine metabolism and nutritional needs.

How to Be Your Own Veterinarian (Sometimes : A Do-It-Yourself Guide for the Horseman)

by Ruth B. James. This book can help the horse owner handle some non emergency situation and gives insight into what defines an emergency.

Horse Owners Field Guide to Toxic Plants

by Sandra Burger, A. P. Knight. An essential reference for horse owners.

The Lame Horse

by James R. Rooney, Jean Abbett Higgins. Most horse owners will find this book very informative when trying to understand various lameness problems and form to function issues.

The Nature of Horses : Exploring Equine Evolution Intelligence and Behavior

by Stephen Budiansky. A study of how the horse became developed into the creature we have today.

The Complete Guide to Buying, Maintaining and Servicing a Horse Trailer

by Neva Kittrell Scheve, Thomas G. Scheve. A superbly written book answering questions about horse trailers that most people don't even know to ask! This book gives insight into trailer design issues, ventilation problems, routine maintenance, and great examples of how these things affect your horse. This is truly a great book! If you have any questions at all about owning or buying a trailer, you NEED this book. In fact any horseowner should have it just on general principals!

by Tom Dorrance, Milly Hunt Porter

Blessed Are the Brood Mares

by M. Phyllis Lose is still one of the best books out there on foaling and mare care.

by Robert M. Miller

TRAINING & RIDING HELP

by Louis Taylor. A good reference for the various actions and reactions one can expect from different styles of bits.

by Ed C. Connell should answer most of your questions about hackamore training and use.

Riding Logic

by Wilhelm Museler is a classic in helping any rider understand and achieve harmony while riding.  EDITOR'S NOTE: This book may be out of print, but if you can locate it used, buy it! It will help you understand the basic concepts of riding whether you rope calves or compete in three day eventing!

Ride Western

by Louis Taylor. Don't let the title fool you! The author is excellent at explaining form following function when it comes to riding. Though it is a very good book for understanding the western style and early evolution, it is also a very practical general riding guide!

FICTION:

The Horse Whisperer : A Novel

by Nicholas Evans

NON-FICTION:

Still Me

by Christopher Reeve.