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About Mark Castillero

Mark Castillero, was born and raised in California. He began his own dog - training business, Pro-Train, in 1978 — just two years after graduating from the University of California at Davis with a bachelor’s degree in animal science and a concentration in animal behavior. What started out as a small company has grown into a rewarding, successful and profitable company that trains approximately 150 dogs per year.

Castillero has more than 40 years of experience training more than 9,000 dogs, from professional protection canines to service dogs to house pets. His industry credentials and experiences are numerous, including being a training specialist in behavior modification and protection and an animal behavior specialist, as well as working as a veterinary technician and an experienced kennel manager. Mark is the founder and general manager of the California Kennel Association; has judged police canine competition, is a California state-licensed guide dog instructor; served as vice president of the International Tosa Ken Association, was a certified specialist in Gifted Animal Placemen, is a member of International Association of Canine Professionals, was an animal evaluator who certified therapy dogs, and much more. He was also responsible for implementing the State of California Apprenticeship Program for dog trainer certification. Now, in addition to running his business, Castillero fills his time by mentoring aspiring dog trainers and traveling the United States and beyond as a seminar speaker. In his downtime, you can find him riding one of his motorcycles in California and beyond or practicing martial arts.

Many people yearn to become dog trainers but don’t have a clue as to what it really entails. Some are looking to change careers, to do something they find more rewarding. Fear is a strong barrier to change, but this book will help you overcome that uneasiness, so you will have the confidence to set out on your own dog-training venture. More Than A Dog Whisperer will explore all the particulars of the industry so you can then make an educated decision to enroll in dog-training school.

Working with animals is a true gift to all who have the opportunity. If you’re passionate about dogs and their relationships with humans, patient and comfortable working on your own as well as with dog owners, and interested in continual self education and betterment, then this book is for you! Mark Dogman Castillero will help you launch and direct your career by providing insightful advice gained through forty years of experience in working as a dog trainer.


  • Launch and direct your career as a dog trainer.
  • Take the leap of doggy faith, so you can finally break the cycle of yearning to do what you love.
  • Overcome the fear of leaving your secure job to do something you love instead.
  • The power of investing in your passion and how it can lead to a most successful, fulfilling living.

This book provides wisdom and insights that will answer questions such as:

  • What are the demands and hours of a dog training job?
  • Should I work for myself or someone else?
  • How do I start my own dog-training business?
  • What areas of dog training do I feel my interests and talents are best suited for?



Have you ever dreamt of working as a dog trainer? This insider’s look into the life of a canine teacher offers guidance and how-to tips for launching your career.

  • Dog Training 101: The various types of dog training you should familiarize yourself with.
  • Working with man’s best friend is a transformational, rewarding, and primal experience.
    Castillero shares his dogman wisdom on the magic of dog training.
  • The first steps of becoming a dog trainer: Each journey into dog training is unique. Castillero introduces several different avenues so you can choose the best one for you.
  • Working as a dog trainer isn’t all fun and games; it’s also a business. Castillero walks you through the basics of the technical and logistical aspects of the business, such as marketing, advertising, accounting, and contracts.
  • Evaluation is key. First, you must attain a good read on the dog, then do the same in regard to the owner. Interacting with pups has its own challenges, but interactions with their humans can be the challenging part of the job. Set yourself up for success by engaging in a very important initial consultation.
  • Developing your own business is no easy feat. Learn the things you need to do to ensure stability and continual growth.
  • In the realm of professions that work with animals, safety is key. Protect yourself — as well as the dogs, your clients, and employees — with these important tips.

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Ahmad Duranai B. Arch., MBA, OAA, BTC

Author of The Leadership Zone
As a how-to guide, this book contains everything you may need to know. Brimming with straightforward strategies anyone can use to overcome the key fears associated with becoming a dog trainer and starting your own dog training business.

Alexander Robert Figueroa

Author of Assess This!
Anyone who’s ever wanted to be able to have a dog training business confidently can benefit from the down-to-earth knowledge in this book. If I could read only one book on becoming a dog trainer More Than A Dog Whisperer is the one I would choose.

Contact Info

  • +1 760 809 9148
  • protraindog@gmail.com
  • www.protraindog.com