This book on the training of scenting dogs explains the composition of scent, how it works in the dog's nose, and what affects scent. It contains chapters on the sense of smell, anatomy and physiology, the human as scent source, the transmission of scent and factors that influence the working with scenting dogs.

Published in hardcover as What the dog knows: the science and wonder of working dogs by Simon & Schuster, New York, c2013.

A dog's favorite words are paired with photos of the objects and scratch-and-sniff smells.

This step-by-step guide will help you teach any dog the basics of groundtracking, air scenting, or how to simply have fun finding objects.

Dogs detect scent from a source that is carried to them in a plume by the wind. The most important tool for a detector dog handler to have on searches is a knowledge of scent plume movement or "scent dynamics" (the science of scent movement). Such knowledge resides primarily in scientific journals that are largely inaccessible to detector dog handlers and written in language that is difficult to understand. Detector Dogs and the Science of Scent Movement: A Handler’s Guide to Environments and Procedures retrieves, reviews, and interprets the results of pertinent scientific research on scent dynamics and presents these results in terms that are easier for handlers to understand. Information on the physiology of the dog’s nose, their sense of smell, and the properties of scent provide the essential information on the process of scenting. The composition of training aids for explosives, narcotics, human remains and other sources is discussed. Recommendations are made on the use of training aids, their placement during training, and the resulting availability of scent. Potential problems and handler errors in the use of training aids are also examined. The characteristics of scent plumes and how wind influences their movement are a key focus of the book. The primary task for the handler is to get the dog into the scent plume so that the dog can detect the scent and follow it to the source the handler seeks. As such, a knowledge of scent and scent plume movement will vastly improve the ability of the handler to accomplish this task. The influence of weather and physical settings such as terrain, vegetation, ground cover, soil and water on scent movement are examined in detail. Strategies for searching, detecting, and locating sources in all physical settings are presented. Specific effects associated with hills and mountains, fields and forests, bare soils and soils covered by vegetation, different soil types, and lakes and rivers are examined in detail. This includes specific recommendations are made about weather and physical settings that result in higher probability of success on searches. Detector Dogs and the Science of Scent Movement will be a vital resource for K9 handles in the private and public sectors—including in Homeland Security, law enforcement, and military settings—as well as a useful guide for lawyers, forensic, and investigative professionals who need to better understand K9 operations.

A “haunting meditation on trust, hope and love” by a woman who adopts and trains a Golden Retriever puppy to become a search-and-rescue dog (People). In the wake of the Oklahoma City bombing, Susannah Charleson’s attention was caught by a newspaper photograph of a canine handler, his exhausted face buried in the fur of his search-and-rescue dog. Susannah, a dog lover and pilot with search experience herself, was so moved by the image that she decided to volunteer with a local canine team, plunging herself into an astonishing new world. While the team worked long hours for nonexistent pay and often heart-wrenching results, Charleson discovered the joy of working in partnership with a canine friend and the satisfaction of using their combined skills to help her fellow human beings. Once she qualified to train a dog of her own, Charleson adopted Puzzle—a smart, spirited Golden Retriever puppy who exhibited unique aptitudes as a working dog, but was a bit less interested in the role of compliant house pet. Scent of the Missing is the story of Charleson’s adventures with Puzzle as they search for a lost teen; an Alzheimer’s patient wandering in the cold; and signs of the crew amid the debris of the space shuttle Columbia disaster—all while unraveling the mystery of the bond between humans and dogs. “A riveting view of both the human animal bond and the training of search and rescue dogs. All dog lovers and people interested in training service dogs should read this book.” —Temple Grandin, author of Animals Make Us Human

What is it? What is the reason that allows us to train dogs to find whatever it is we seem to be seeking? Dogs are an amazing animal with a nose to prove it. There are also the advantages of being able to use this domesticated and loving animal to perform tasks for us just because they love the attention, food or the toy at the end of the task. There really is no greater joy than to watch your dog do what you have trained it to do and do it well. But how does this work? What is scent theory? Do we really know how and why our dogs do what they do? The word theory means an idea, an opinion in some cases. There is real science behind the structure and abilities of a dogs olfactory but a theory about what they do with that scent is just that, a theory. I have been a search and rescue K9 tracking and trailing handler for over 10 years and have been shown and made a believer out of a scent theory that works, and works well, not just on some dogs but all dogs I have worked with. In this book I will present what I was taught, what I have found to be realistic and workable and what can help you train your dog to become a master tracker, trailer, air scent, drug or cadaver dog. The information in this book is also derived from experiences of not only myself but many handlers I have worked with over the years, some in search and rescue and some from law enforcement.