What types of texts are often translated into pictorial form in manuscript illustrations?

Poetic verses from epics and various texts

Answer: Poetic verses from epics and various texts
Manuscript illustrations often depict pictorial translations of poetic verses from epics and various texts.

A large section of paintings are appropriately referred to as manuscript illustrations as they are pictorial translations of poetic verses from epics and various canonical, literary, bardic or music texts (manuscripts), with verses handwritten on the topmost portion of the painting in clearly demarcated box–like space. Sometimes, one finds the text not in the front but behind the work of art.