Simple guide how to no take any fall damage!
How Do I Take No Fall Damage?
Step 1: Stand near high place. Preferable with sloped surface (not required tho)
Step 2: Creep toward the edge, until you start slipping.
Step 3: When you start slipping, press “B”. To open your survival book. This will not lock you in place, you will continue to move, and upon hitting the ground, you take no damage! Amazing!