Resource guarding can be one of the most confusing and emotionally charged behavior challenges dog owners face. Whether it shows up around food, toys, space, or even people, it often leaves families feeling frustrated, worried, or unsure where to turn.

In this thoughtfully updated second edition, Jean Donaldson revisits and refines her original work with deeper insight, expanded case examples, and practical, step-by-step guidance rooted in modern, relationship-centered training. Complex behavioral science is translated into clear, compassionate strategies that prioritize safety, trust, and long-term success.

This new edition offers a more nuanced understanding of why dogs guard, how to assess risk, and how to implement humane, effective behavior modification plans. Readers will find updated protocols, troubleshooting tips, and guidance for prevention-making this an invaluable resource for pet professionals and dedicated owners alike.

This second edition builds meaningfully on the foundation of the first-offering an even more comprehensive and practical guide to helping dogs feel secure, and helping families restore harmony at home.

Jean Donaldson Is a multi-award-winning author and the founder of The Academy for Dog Trainers. She is also the author and presenter of Dog Training 101 from The Great Courses.