The Sound of Laughter was British comedian Peter Kay's initial volume of autobiography, released on 5 October 2006. The book was a bestseller. The Sound of Laughter was a success with 278,000 copies sold in its first day (including pre-orders). It went straight in at Number 1 on both the Play.com and Amazon.co.uk book charts and was the Number 1 highest selling autobiography in the UK. Source: Wikipedia (en)