Established children's author Nat Lambert has been writing children's books for the past ten years. Born and raised in London, Nat started his writing career after graduating from UCL and has penned fiction and non-fiction titles for leading publishers throughout the world, including Barnes and Noble, Hinkler, Scholastic and Imagine That Publishing.

Andrea Petrlik was born in Zagreb, Croatia. She graduated in graphic arts from the Academy of Fine Arts in Zagreb, and has since illustrated over 20 picture books as well as many activity books. Andrea was awarded the Grigor Vitez award and the BIB (Biennial of Illustrations Bratislava) Gold Plaque 2003 for her book 'The Blue Sky'. She has also won the Oita Biennial Grand Prize 2004 and was nominated for the IBBY Honour List 2002.

Learn important math skills in this wipe-clean and pull-the-tab novelty board book that supports school learning in the home.