Recordings by her: "To Be Free: The Nina Simone Story" and "The Very Best of Nina Simone" (both on Sony/BMG) are good starting points.
Tribute album: "Nina Revisited" has covers by Lauryn Hill, Usher, Mary J. Blige, Jazmine Sullivan and Gregory Porter (RCA).
Concert video: "Nina Simone Live at Montreux 1976" is available on DVD (Eagle Eye Media) or can be streamed online (vimeo.com/36880003).
Films: "What Happened, Miss Simone?" (Netflix) and the controversial biopic "Nina" (out April 22).
Books: In addition to her 1992 autobiography "I Put a Spell on You," check out "Nina Simone: The Biography" by David Brun-Lambert and "What Happened, Miss Simone?" a biography by Alan Light.