Danial Joseph is a veteran, he holds a masters degree in Industrial and organizational psychology. In addition to that, he is an author of three books, and has two more books on the way.
Dan's Website
https://combatpsych.com/
More Podcasts with Dan
https://combatpsych.com/media
Dan's Books on Amazon
https://www.amazon.com/stores/author/B078LLY8JQ?ingress=0&visitId=659fad63-19f1-4b76-a527-647f53dfa8ee
Black Belt Mindset https://www.amazon.com/dp/B0CKD8S9T8 CombatPsych Handbook https://www.amazon.com/dp/B0CJSVCRQG Backpack to Rucksack https://www.amazon.com/dp/B0BRQB8HSY