One goal of the present study is to emphasize Johnson's "talent for fiction, the range of his comic invention, and the subtlety of his tone." A substantial group of essays from all three serials, those written in the form of letters ostensibly submitted to the essayist by his readers, appears to offer many examples of the inventiveness of Johnson's mind, and it is to this group that the term epistolary essays refers. Johnson was following a well-established tradition in utilizing the device of the imaginary correspondent, but the main objective of this dissertation is to analyze the various personae which Johnson adopted in these essays.