A calligram is a poem, phrase, or word in which the typeface, calligraphy or handwriting is arranged in a way that creates a visual image. 

This calligram is showing an panther. The word is panther.

A pictogram, also called a pictogramme, pictograph, or simply picto,^[1] and also an 'icon'^{[citation needed]}, is an ideogram that conveys its meaning through its pictorial resemble to physical object.

 

A rebus is an allusional device that uses pictures to represent words or parts of words. It was a favourite form of heraldic expression used in the Middle Ages to denote surnames.