Wedding Dress Shapes
There are six basic traditional wedding dress shapes:

Sheath dresses are simple, close-fitting and usually unstructured. Most come in soft, flowing fabrics like georgette and crepe. These are definitely best for tall slim brides.

An A-Line or Princess shape dress has fitted vertical seams running from the shoulders down to a flared skirt, which creates an “A” shape. It’s best for brides with small waists and those wanting to hide broad hips and large thighs.

An empire line dress has a high waistline and a seam just underneath the bust.It’s best for small busted brides and it makes petite brides look taller.

The traditional ball gown wedding dress has a fitted bodice and a floor-length skirt, and usually suits a more formal setting such as a church. This style of dress is best for brides with slim waistlines, and is great for hiding full hips.

A mermaid or fishtail dress is a narrow fitted dress with a flared hem. This style is great for making petite brides look taller; and if you’re tall and slim, it’ll give you curves.
All pictures from http://www.verawang.com/wedding/