Aristotle's Poetics provides the first systematic analysis of drama and poetry. In it, Aristotle defines tragedy, explores its effects, and analyzes its key elements like plot, character, thought, diction, song, and spectacle. He compares tragedy to epic poetry, addresses their differences, and argues that tragedy is a superior form. The Poetics outlines Aristotle's view of mimesis in art and establishes foundational concepts for literary criticism.