After working as a a freelance illustrator and designer in New YOrk, Bob Gill (b.1931) moved to London in 1960, where he joined Alan Fletcher and Colin Forbes to create a design agency that became the precursor of Pentagram. He resumed his freelance career as an illustrator, designer, teacher, film-maker and author of children´s books in 1967, and return to New York in 1975. His clients include Pirelle, Universal Pictures, Nestlé and the United Nations, and he has written a number of books on graphic design. The book Waht colour is your world? If you lie in the graa, the world is green; turn over and look at the sky, it´s blue. But if you ask a gardener or a bricklayer or a milkman what colour is your world?, they will give you different answers. This book encourages children and their parents to think a bout colour and look at the world in a new way. Look around, and think again. Waht colour is your world?