Few TV stars have as loyal a following as David Letterman - for the last 15 years, more than four million fans have been tuning in to the show for an hour of unrivalled off-the-wall comedy. Now, with Letterman's first book in more than a decade, he gives his fans yet more to laugh about. Drawn from the popular weekly segment, Late Show Fun Facts is a collection of unusual, little-known bits of trivia assembled by the Federal Bureau of Miscellaneous Information.