Day to Day (D2D) was a one-hour weekday American radio newsmagazine distributed by National Public Radio (NPR), and produced by NPR in collaboration with "Slate". Madeleine Brand served as host from 2006. Topics regularly covered by D2D included news, entertainment, politics and the arts; contributors included familiar NPR personalities, reporters from NPR member stations, writers for "Slate", and reporters from "Marketplace", a show produced by American Public Media. "D2D" premiered on Monday, July 28, 2003, and fed to stations from noon ET with updates through 4:00 p.m. ET. It was the fastest growing program in NPR's history.