Professor Cognard-Black introduces you to artistic proofs, which are grounded in your expertise and colored by your own observations and experiences. The most important artistic proof in any essay is ethos-the writer's ethical appeal or credibility. She demonstrates how to effectively use ethos along with logos or rationality to bring reasonableness into your essays, which vital to writing effectively. You'll examine the work of a pair of writers who mastered the reasonable essay: Joseph Addison and Sir Richard Steele.