This study is concerned with the artistic use of classical rhetorical figures in Shakespeare's I Henry IV.After the Introduction, Chapter II examines the history of rhetoric, focusing on the use of the rhetorical figures in Ancient Greece, Ancient Rome, and Medieval Europe. Chapter III investigates rhetorical principles and uses of the rhetorical figures during the English Renaissance and examines the probable influence of rhetoric and the figures on William Shakespeare. Chapter IV discusses themes, characterization, structure, and language in I Henry IV and presents the contribution of the rhetorical figures to the drama's action and characterization. Chapter V considers the contribution of the figures to the major themes of I Henry IV and concludes that the figures, when used with other artistic elements, enhance meaning.