How much do we really know about anything? Its a question which has obsessed philosophers, scientists, and men in pubs for most of human history. Thomas Edison thought we knew less than one millionth of one percent about anything; Mark Twain thought it would take eight million years to master mathematics alone; Ambrose Bierce believed knowledge was just the small bit of ignorance we arrange and classify. So, we dont know that much. But, as someone else once said, it isnt what you dont know that does you harm, its what you know thats wrong. Enter The Book of General Ignorance, a book that sets out, calmly and humbly, to show you that a lot of what you think you know is wrong, incorrect, piffle, nonsense. If, like Alan Davies, you still think the Henry VIII had six wives, the earth has only one moon, that George Washington was the first president of the USA, that Bangkok is the capital of Thailand, that the largest living thing is a blue whale, that Alexander Graeme Bell invented the telephone, that whisky and bagpipes come from Scotland or that Mount Everest is the worlds tallest mountain, then there are at least 200 reasons why this is the book for you.