Diabetes mellitus in all its forms is now considered the epidemic of the century: In 2011, 7% of the world's population, or 366 million people, were classified as diabetics, with a strong upward trend. The diabetic alert dog, which detects the owner's declining blood sugar levels and alerts them, is increasingly gaining importance as a proven useful aid and receiving greater media attention. The interplay between the training of the dogs, canine and human behavior, and diabetes is extremely multifaceted. The authors present this complex constellation to the reader in a clear, user-friendly, yet professional manner. The book is aimed at both dog trainers and diabetics, with or without a dog. It includes insights into scent theory, the dog's expressive behavior, and more.