This video shows you the 'why', the theory behind collar patterns.

Being given a set of instructions shows you how to draft a specific collar pattern, but this video will go through a series of collar types, going from one pattern to the next, so you can get and understanding of how collar patterns work.

Once you understand the theory, you can draft a pattern for any collar style. I show you a few garments in this video, you can see them here, with much more detail about that specific collar.