Found this site today ...some interesting info./pics of hairstyles etc., --just scroll down a bit and all the links are on the right......
http://coolmenshair.com/category/face-shapes

Excellent find. There is a lot of theory behind matching a hairstyle to a face shape, hair color to skin complexion, etc. Stuff we take for granted that a stylist learns in school. It really helps to know this stuff when you are dealing with hair replacement because it can make a big difference when you get the right specs and choose the proper style.