[NEW] Happy Cat, Happy You (Storey Books, 2008)
[NEW] Happy Dog, Happy You (Storey Books, 2008)

Planet Cat with co-authors Sandra and Harry Choron (Houghton Mifflin)
The Cat Behavior Answer Book (Storey Books)
The Dog Behavior Answer Book (Storey Books)

Doggy Day Care, (BowTie Press, 2005)
Obesity (in dogs), (BowTie Press, 2005)
Clicker Training, (BowTie Press, 2005)

Dog Party: How to Party with Your Pup, (BowTie Press, 2004)
Tricks & Games, (BowTie Press, 2004)
Come, Sit, Stay, (BowTie Press, 2004)
Healthy Dog: The Ultimate Fitness Guide for You and Your Dog, (BowTie Press, 2004)
Tricks and Games, (BowTie Press, 2004)

Show the Stuff, Cut the Clutter, (Yankee Book, 2003)
Happy Dog: How Busy People Care for Their Dogs, (BowTie Press, 2003)

Dog Training: A Lifelong Guide, (BowTie Press, 2002)
Never Act Your Age: Play the Happy Childlike Role Well At Every Age,
     (Beaver's Pond Press, Inc., 2002)
Wow! That's Ingenious, (Yankee Books, 2002)
And Thou Shalt Honor, (Rodale, 2002)
The Big Book of Cat Secrets, (www.catsecrets.com)

Real Food for Dogs, (Storey Books, 2001)
The Kitten Owner's Manual, Storey Books
50 Simple Ways To Pamper Your Cat, Storey Books
50 Simple Ways To Pamper Your Dog, Storey Books
Jerry Baker's Green Grass Magic, Storey Books, ghostwriter.
Jerry Baker's Herbal Pharmacy, Storey Books, ghostwriter.

Nature's Virus Killers, co-authored with Mark Stengler, N.D., (MI Evans, 2000)
PetSpeak, contributing author, (Rodale Press, 2000)
DogSpeak, contributing author, (Rodale Press, 2000)

Herbs That Heal, co-authored with Bridget Doherty, (Rodale Press, 1999)
Prevention's Natural Healing Guide 2000, contributing author, Rodale Press
Healing with Motion, contributing author, (Rodale Press, 1999)