poety

[fizz]

What is the name of poems which use the title as the first letter in each line?

[incitatus]

Acrostics, isnt it?

[lovelylad]

It is acrostics, though it doesn't only mean when the initial makes up the title, it can be any word. There's more than one type: single, in which the first letters make up a word; double, in which the initial and final make up words; and triple, in which initial, middle and final do so.