The single letter monogram can be used for either a first name or a surname.

Traditionally, single-letter monograms represent the last name.

The two letter monogram can represent two first names for a couple, a first and last name or a joint household with two different last names.

The three letter monogram can represent a single person. The first name is the letter on the left.

The surname is in the centre,and the middle name is on the right.

The marriage monogram has one partners first name on the left. The second partners first name is on the right and their surname is the centre letter.