Doggy Dan's book "What The Dogs Taught Me About Being A Parent", published by Random House, is available on Amazon.com.
If you do a search for "Doggy Dan book" you'll find what offers they have.
When we did a search recently we found the Kindle edition was on sale: http://www.amazon.com/What-Taught-About-Being-Parent-ebook/dp/B00CB873NG/ref=sr_1_1?ie=UTF8&qid=1452557352&sr=8-1&keywords=doggy+dan+book