The Walt Whitman Archive is an electronic research and teaching tool that sets out to make Whitman's vast work, for the first time, easily and conveniently accessible to scholars, students, and general readers. Whitman, America's most influential poet and one of the four or five most innovative and significant writers in United States history, is the most challenging of all American authors in terms of the textual difficulties his work presents. He left behind an enormous amount of written material, and his major life work, Leaves of Grass, went through six very different editions, each of which was issued in a number of formats, creating a book that is probably best studied as numerous distinct creations rather than as a single revised work. His many notebooks, manuscript fragments, prose essays, letters, and voluminous journalistic articles all offer key cultural and biographical contexts for his poetry. The Archive sets out to incorporate as much of this material as possible, drawing on the resources of libraries and collections from around the United States and around the world. The Archive is directed by Kenneth M. Price (University of Nebraska-Lincoln) and Ed Folsom (University of Iowa).