Stop Motion

What is stop motion? Stop motion is a cinematic technique where the camera repeatedly takes images every image slightly different each time, sometimes used to give inanimate objects the illusion of lifelike movement.

What I want to learn is some basics of stop motion, how it works and what needs to be done to create basic videos of stop motion. With this I want to be able to also work on taking a stop motion scene and be able to photoshop elements in as well as actually use physical elements in the scenes.