Nursery rhymes are a tried and true method of engaging with children. As well as helping in language formation and observation, nursery rhymes contribute to a child's spatial development, via music, rhyme and movement. Trace Moroney is the New Zealand-based author and illustrator of the bestselling "When I'm Feeling" - series. The series has sold over 1.5 million copies worldwide into 15 different languages. Total sales of her books now exceed 3 million copies.