"Horse Secrets" by A. S. Alexander is a practical guide on veterinary science and horse trading written in the early 20th century. The text outlines various insights and tips related to horse breeding, feeding, care, and the often deceptive practices in horse trading, aiming to educate buyers and sellers alike. Dr. Alexander's extensive experience in veterinary science serves as a foundation for the valuable information presented in this work. At the start of the book, the author introduces his background and explains the intention behind this compilation of knowledge—namely, to protect both buyers and sellers from the common tricks and dishonest practices encountered in the horse trading market. He emphasizes the importance of being informed and vigilant to prevent loss and exploitation. The opening chapters delve into topics such as proper foal feeding, peculiarities of horse behavior, and the necessity of recognizing deceit in horse sales, effectively preparing readers for the more intricate details covered in subsequent sections. (This is an automatically generated summary.)