I had the honor of being selected as one of Houston Modern Luxury's Men of Style.
SUM was chosen as the best book of 2009 by Chicago Tribune's Pulitzer-winning literary critic Julia Keller.
Listen to David discussing Sum -- and actor Jeffrey Tambor reading stories from the book -- on WNYC's Radiolab.
In September, 2009, Sum became the number 2 book in the United Kingdom on Amazon's bestseller list, only behind Dan Brown's Lost Symbol.