Face Shapes Guide
Heart
widest at forehead, high cheekbones, narrow chin
Complimentary shapes: 
Avoid: Narrow, Oversized, Angular
Square
the facial width of the forehead and cheekbones is equal; square jaw line
Complimentary shapes:
Avoid: Angular, Horizontal, harsh angles
Round
round, full cheekbones; facial width and height are equal
Complimentary shapes:
Avoid: Straight Lines
Oval
evenly shaped forehead, cheekbones and jaw; jaw line tapers evenly to chin
Complimentary shapes:
Generally any frame shape flatters an oval face.
Triangle
widest point at chin, narrower cheekbones, and narrowest at forehead
Complimentary shapes:
Avoid: Small frames