The book was featured on the Richard & Judy summer reading list in 2008 .
The Sunday Times reported in its 2008 year - end bestseller list that the novel led the paperback and hardcover fiction list with sales of 636,105 copies .
The book was featured on the Richard & Judy summer reading list in 2008 and The Sunday Times reported in its 2008 year - end bestseller list that the novel led the paperback and hardcover fiction list with sales of 636,105 copies .