Suzanne Slade is the author of 100 books for children, including many titles on science topics. Suzanne holds a Mechanical Engineering degree, and has worked on Delta IV rockets and car braking systems before beginning her writing career. She lives in a suburb of Chicago with her husband and two children.

Andrés Martínez Ricci is an Argentinian illustrator. After studying graphic design at Universidad de Buenos Aires, his childhood passion became a reality when he embarked on a drawing-based professional career. Over the last fifteen years his illustrations have appeared in diverse magazine and newspaper publications, as well being used in advertising. He has worked on animation productions for both Disney and Cartoon Network. More recently he has illustrated a number of books for prestigious UK and US-based publishers, such as Oxford University Press, Macmillan, Harcourt and Pearson. He currently lives in Madrid.