Aristotle 
The Poetics of Aristotle [EPUB ebook] 

The Poetics of Aristotle is the earliest surviving work of dramatic theory and first extant philosophical treatise to focus on literary theory. In it, Aristotle offers an account of what he calls ‘poetry’. In this reflections Aristotle includes verse drama – comedy, tragedy, and the satyr play – as well as lyric poetry and epic poetry. The similarities and differences are being described in this work.