From logos to flags to punctuation marks, symbols are all around us. But we’re so used to seeing them that we never question why, for instance, the heart symbol is anatomically incorrect or why the Bluetooth symbol is named after a tenth-century Danish king in need of dental work. Symbols shows just how much importance has been attached to the smallest and simplest of ideas, and features over forty of the most significant symbols from religion, politics and popular culture down the centuries.