How do I train a horse for western riding?

Bridles and halters (headcollars) are an arrangement of straps around the horse's head used for communicating with the animal. Bridles often contain a bit (see below) attached to reins and are used for riding and driving horses. On the other hand, halters have no bit, are more general-purpose, and most often equipped for leading (particularly pack horses) or tethering a horse with a lead rope. A hackamore is a type of bitless bridle usually used to train young horses, or to go easy on an older horses mouth. Hackamores or bosals are usually seen in western riding.