Sit. Stay. Read!

I’m Alex Nieto, a Denver-based dog trainer who believes great behavior starts with a great relationship.

Here, I share real-world dog training tips and connection-based methods that help you bring out your dog’s best.

From building trust and confidence, to leash reactivity and separation anxiety, you’ll find practical advice, mindset shifts, and plenty of “aha” moments.

Alexander Nieto 7/14/26 Alexander Nieto 7/14/26

Denver Heat Is No Joke. Here’s What Your Dog Needs You to Know.

Keep your dog safe in Denver this summer. Discover heat safety tips, paw protection, hydration advice, and warning signs every dog owner should know.

Alexander Nieto 5/25/26 Alexander Nieto 5/25/26

“When Should I Start Training My Dog?”

Puppy, rescue, shelter, foster — any age, any background. Here's why the timing matters more than you think.

Alexander Nieto 4/6/26 Alexander Nieto 4/6/26

Loose Leash Walking Starts Before You Step Outside

Alexander Nieto 10/24/25 Alexander Nieto 10/24/25

Is Your Dog Reactive on Walks? 5 Steps to a Calmer Walk

Does your dog bark, lunge, or growl on walks? Learn 5 proven ways to calm a reactive dog from Denver’s relationship-first trainer, Denver Dog Guru.

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