Brian Eno and I have twice performed a musical version of Sum, once at the Sydney Opera House, and once at the Brighton Dome. Learn more.
SUM is Book of the Year: Chicago Tribune
SUM was chosen as the best book of 2009 by Chicago Tribune's Pulitzer-winning literary critic Julia Keller.
SUM at the Royal Opera House
SUM has been turned into an opera at the Royal Opera House in London (Composer: Max Richter, Director: Wayne McGregor). The London Evening Standard hails the opera as "immersive, meditative and sweetly fascinating". Read about the background of the collaboration in Wired.
Sum #2 book in UK
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.