About the BBC Radio 4 programme that Steve Parkes mentioned above, the Radio Times has two sets of notes, the first from their "Choices" (recommended programmes) column, the second from the programmes column itself:

(1) Remembered for his acerbically witty songs documenting the suffering of the poor and the powerless, Woody Guthrie's more intimate writings are little known but just as prolific, preserved in the form of doodlings. Luckily, he hoarded all he created. His daughter Nora brings his legacy to light with the help of Lou Reed, Michael Franti, Ani DiFranco, and DJ Logic.

(2) The Woody Guthrie Archive in New York holds his writings - in notebooks, even on paper bags and cigarette packets. His daughter Nora, who acts as both protector and caretaker of his work, presents her latest project, which brings together Guthrie's most intimate diaries and an unlikely group of famous musicians and artists.