The Essential Guide to Calving by Heather Smith Thomas is a comprehensive textbook aimed at ranchers and cattle farmers. Published by Storey Publishing in 2008, this hardcover book covers subjects in Technology & Engineering and Medical areas, specifically focusing on Agriculture / Animal Husbandry, Veterinary Medicine / General, and Veterinary Medicine / Food Animal. With a practical approach to calving techniques and animal husbandry practices, this essential guide offers valuable insights for those looking to ensure the health and well-being of their beef or dairy herd.