(well, since this was a brain of britain question, it is probably verified, but you never know.)

apparently in the summer of 2007, when members of parliament were surveyed as to what book they were intending to take on holiday: the most popular book amongst conservative members was the biography of william wilberforce, written by their deputy leader, william hague. the most popular book amongst labour mps was the god delusion by richard dawkins. the lib dems said they were taking the seventh harry potter book.