Cheryl Robertson is the author of Goggas, a collection of captivating creepy crawlies. Supplied/ Tuppy Robertson Love them or hate them, insects are essential for the planet as decomposers, soil aerators, sources of food, pest controllers and more. A nonfiction paperback entitled Goggas: A collection of captivating creepy crawlies by Cheryl Robertson and illustrated by Greg Mandy, was published at the end of last year. The main aim of the book is to encourage children to look out for, care about and understand the vital roles that insects play. The author writes about insects found all over the world, including some that live only in sub-Saharan Africa.