This video is demonstrated on full-size car tires and suspension, but the concepts are all the same, and it's a nice, quick overview of what all the basic alignment terms mean. If you're new to RC suspension, this is a great jump start!
Setup guideSource: Animated Engineering
Wheel Alignment Overview by Animated Engineering
Great overview of basic alignment aspects of the suspension, from toe and camber to caster and steering axis inclination.
