The Naked Warrior by Pavel Tsatsouline focuses on bodyweight-only exercises and methods for maximizing strength using minimal equipment.
I read The Naked Warrior I was closed when I when I read it um but it's a wonderful book because it talks about body weight um only exercises
""Andrew Huberman mentions "The Naked Warrior" as a wonderful book focused on body weight exercises, specifically referencing the concept of crushing one's fist to increase gripping ability."