Ever wondered how many dimples there are on a golf ball; or why the shipping forecast is broadcast on 198 kHz long wave? Find yourself puzzling over what is really going on in the 273 seconds of John Cage's most famous composition? Then this book of mind-boggling number facts is for you. The Book of 365 offers an entertaining and thought-provoking mini-essay on the world around us for every day of the year, each taking a number between 1 and 365 as its starting point, encompassing science, history, art, literature, medicine, and popular culture, and covering topics as diverse as modern music and meteorites, archaeology and chilli sauce, un-birthdays and radio valve technology. On the way, uncover: at 5, the pentaradial symmetry of starfish and roses; at 34, how the US flag got its stars and stripes; at 99, the mysteries of the 99 ice-cream; at 239, where Sherlock Holmes really lived and, in honour of the leap year, at the end of the book there is a bonus 366th essay!