What if aggressive behaviour in dogs could be changed without confrontation, punishment, or fear? Turning Fierce Dogs Friendly, 2nd Edition by Kellie Snider presents a science-based, humane approach to resolving canine aggression using Constructional Aggression Treatment (CAT). The updated protocol prevents escalation by intervening early in the aggression sequence, eliminating stress and the need for punishment. Designed for dog owners and professional trainers, the book offers clear guidance, real-world examples, and step-by-step strategies to identify reinforcements, understand aggressive behaviour, and foster lasting trust and behavioural change.