"Diamonds In The Raw" is a new book about the development of the DMV (DC, Maryland, Virginia) music movement from the past to the present. I'm not sure if its worth purchasing but I really need to get my hands on a copy. Sounds interesting.
The book also features interviews and commentary from:
DC Scorpio, Stinky Dink, Nonchalant, DJ Red Alert (from NYC), Section 8 Mob, Poem-Cees, Skinny Corleone, Tony Blunt, The Oy Boyz, DJ Kool, Judah, 20 Bello, Carty Yeah, Go-Go Michelle, Tabi Bonney, Chucky Thompson, Kokayi, Toni Blackman, Head-Roc, Storm the Unpredictable, Whitefolkz, Dre "All Day In The Paint", Brother Maniac, Kingpen Slim, DJ Jaymo,
DJ Heat, Black Indian, Likeblood, Lyriciss, Hitmaka, Whop (Wisdom Speaks), X.O., Pro Verb, Young Sleep, Raheem DeVaughn, and many more.
Now available now at:

The Howard University Bookstore (2225 Georgia Avenue)

The Literary Joint Bookstore (Forestville Mall)

Borders at Capital Center Blvd (Largo)