How Dogs see with their noses: Alexandra Horowitz
youtu.be/p7fXa2Occ_U

Targeting: Ken Ramirez
youtu.be/nmJkDPnpYGU

How to clicker train: Donna Hill
youtu.be/pBObkR4ZUNY

How to clicker train: Karen Pryor Academy, Take a Bow Wow
youtu.be/IC367wKGi4M

Association of Professional Dog Trainers
apdt.com/resource-center