The monkey is wreaking havoc making Hugo and his friend very angry. But what is anger? This book explores the effect of anger, the situations in which it arises and encourages children to think about what anger is and learn how to deal with it. Children will recognise the characters from the Cbeebies series, What's The Big Idea?.

The book is part of a series which introduces young children aged 4+ to philosophy by exploring different emotions and ideas through a variety of amusing and familiar situations. Each book aims to promote thinking skills in its readers developing their questioning of the world around them and encouraging them to make up their own minds. The books include discussion notes for parents or educators.