Mark regularly adds videos to YouTube as well as sending exclusive videos to his email subscribers (free). If you subscribe to Mark’s YouTube channel (its free) you will get notified when he adds another.
Direct links to some are below, which will give you more of an insight into how Mark trains and hopefully help with your horsemanship
All about Mark
Some of My Philosophies
Connecting the Mind not just the Feet
Advice on horses with pinned ears
Introducing feel & the first halter lesson
Lesson to improve your riding relationship, flexion & feel