The Book of General Ignorance round differs, in particular during the Christmas specials. During the course of the "B" Series special, Fry and Davies swapped places for "General Ignorance", with Fry attempting to answer questions ostensibly written by Davies to stump him. During "D"s Christmas Special, all the "GI" questions revolved around saints. "The Book of General Ignorance" contains a list of 230 questions, most of which previously appeared in episodes of "QI". Each question explains the correct answer, and usually attempts to show why people tend to make the wrong assumptions, or believe certain myths. Each book contains two forewords, one by Fry, the
And Then There Were None of "our black brothers", which is understandable only in the context of the original name.) UK editions changed to the current definitive title in 1985. The word "nigger" was already racially offensive in the United States by the start of the 20th century, and therefore the book's first US edition and first serialization changed the title to "And Then There Were None" and removed all references to the word from the book, as did the 1945 motion picture. This is the best selling crime novel of all time, and what makes Agatha Christie the best selling novelist. It is Christie's