Field guides

Green wood weight by species plus a piece-weight calculator, so the rigging is sized for the load instead of a guess.

Every knot, bend and sheave takes strength out of the line. Here is roughly how much, and what else quietly destroys a climbing or rigging rope.

GRCS, Port-a-Wrap, blocks and pulleys, low-friction rings, whoopie and dead-eye slings — what each one does and how it is run safely.

Reactive forces and how to stay ahead of them, starting and brake rules, felling hinge basics, and the PPE standards your gear should actually meet.

Reading utility infrastructure, estimating voltage from insulators, minimum approach distances, and the hazards that injure tree workers who never touch a wire.