Fonts surround us every day, on street signs and buildings, on movie posters and books, and on just about every product that we buy. But where do fonts come from and why do we need so many? Who is behind the businesslike subtlety of Times New Roman, the cool detachment of Arial, or the maddening lightness of Comic Sans (and the movement to ban it)? Simon Garfield embarks on a mission to answer these questions and more, and reveal what may be the very best and worst fonts in the world.