In 1988 Nike told us to ‘Just Do It’. Thirty years on, that ad campaign remains one of the most successful of all time. From KitKat’s ‘Have a break’ to L’Oreal’s ‘Because you’re worth it’, Suzanne Harrington examines the power of a slogan.

A BILLBOARD ad which referred to a rape scene in the 1972 film Deliverance has been found to be in breach of taste and decency advertising codes.