Eugene Trivizas has written over 100 books, and is loved by children and grown-ups alike. He is the winner of more than twenty national and international prizes and awards, and much of his work has been adapted for stage, screen and radio. Dr Trivizas is a professor of criminology. He wrote the first studies of crowd violence in football fans and continues to practise as a barrister. His children's books include the popular 'The Last Black Cat'. Helen Oxenbury is an English author and illustrator. She won the Kate Greenaway medal in 1999 for illustrating 'Alice's Adventures in Wonderland' and also in 1969 for 'The Quangle Wangle's Hat' and 'The Dragon of an Ordinary Family'. 'We're Going on a Bear Hunt' won the Nestle Smarties Book Prize in 1989, 'Farmer Duck' was winner of the British Illustrated Children's Book of the Year and the Smarties Prize and 'Three Little Wolves and the Big Bad Pig' (Egmont) was highly commended and a Greenaway runner up.