In a world of fluid authorship and textual explosion, the very definition of a document is evolving in unexpected and exciting ways. Old categories give way to new, and items that seemed clearly outside the bounds of textuality are finding their way into the mix. Sound, video, and games all inform our understanding of texts. In this week’s retrospective episode Joe Janes, the author of the book Documents that Changed the Way We Live, offers his perspective on what it means to be a document and talks through the history surrounding the Rosie the Riveter poster and Webster’s Dictionary.