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.
In June, 2009, David Eagleman collaborated with musician/producer Brian Eno to perform a musical reading of Sum to 1,000 people at the Sydney Opera House. In May of 2010 they performed together again to 1,200 people at the Brighton Dome in England. Stay tuned for further performances.
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.
Listen to British rocker Jarvis Cocker read the story "Descent of Species" from Sum. He is one of the dozens of terrific voices who read for the audio book.