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
One World or None benefit of humanity. In early 1946, rebranded as the Federation of American Scientists, the organization took efforts to broaden and diversify its network of supporters to include all who want to reduce nuclear dangers and ultimately prevent global catastrophe. In 1946, just months after atom bombs were dropped on Hiroshima and Nagasaki, the scientists who had developed nuclear technology came together to express their concerns and thoughts about the nuclear age they had unleashed through the release of a book, "One World or None". The anthology of essays included contributions from Niels Bohr, Albert Einstein, and Robert Oppenheimer, among others.