Andrea Mills is an award-winning author of more than 50 children's reference books across a range of subjects, from animals and atlases to science and society. Luke Scriven is an author-illustrator. Encouraged by his nan to make art, Luke creates his pictures using a mixture of watercolour and gouache. Zara Kadir is a psychotherapist that works with both adults and children. She has spent seven years providing art and play therapy in primary and secondary schools, and believes it is important for children to identify and process their emotions.