Pitching fitness books

what books r the best for pitching workout/fitness/drills kinda thing… like tuffcuff, but tuffcuff isnt an option cuz it isnt sold in canada

and also how about books on mechanics?

Mechanics: The Art and Science of Pitching, by Tom House

Fitness: House has a book titled, Fit To Pitch, which has some good stuff in it but I can’t really compare it to any other books on pitching fitness as I haven’t read any others. House also has a newer book titled, Fastball Fitness, but I’ve only just started to read it.

You can get the House books at the NPA website