Marcy Dinius discusses her book, The Textual Effects of David Walker's "Appeal": Print-Based Activism Against Slavery, Racism, and Discrimination, 1829-1851. David Walker's "Appeal to the Coloured Citizens of the World (1829-1830)" was one of the first antislavery texts published that openly called for slave self-defense and resistance. Professor Dinius explores how Walker used research and typography to introduce varied levels of readership and understanding to include as wide an audience as possible. Walker's "Appeal" had wide ripple effect on other black abolitionists, a few of which are discussed at length. Marcy J. Dinius is an Associate Professor of English at DePaul University.