How to snell an octopus hook for catfishing

Can someone explain these circle hook differences?

Pond - Bait for catfish that stay on the hook

Octopus Baitholder Fishing Hooks Kit,130pcs Offset Octopus Circle Hooks Set Catfish J Hooks High Carbon Steel Barbed Jig Fishhooks for Freshwater Saltwater Size 1/0-5/0 : Sports & Outdoors

One Cool Catfish Rig - In-Fisherman

1. Quantity: 100pcs Extra Sharp Brab Fishing Hooks for Each Size 2. Off-set Point and Needle point & Made of High-Carbon Steel & Color: Black Chrome

Offset Octopus Hooks Fishing 100pcs Baitholder Fishing Hooks Assortment Sharp Beak Circle Hooks Black Barbed Fish Hooks for Catfish Steelhead Trout

Catch and Release Hook: Offset circle hooks designed for hooking the fish in the corner of mouth or lip, reducing gut hooked fishes. It's believed to

Circle Hooks Saltwater Catfish Tackle, Size 10/0-1/0 Octopus Offset Circle Fishing Hooks

Circle Hook Knot - The Snell Knot

One Cool Catfish Rig - In-Fisherman

How to snell an octopus hook for catfishing