Why is there an ‘h’ in ghost? William Caxton, inventor of the printing press and his Flemish employees are to blame: without a dictionary or style guide to hand in fifteenth century Bruges, the typesetters simply spelled it the way it sounded to their foreign ears, and it stuck. Seventy-five per cent of English spelling is regular but twenty-five per cent is complicated, and in Spell It Out, our foremost linguistics expert David Crystal extends a helping hand to the confused and curious alike.