THIS COMPETITION IS NOW CLOSED.
Update: the winner has been contacted. Thank you for taking part!
We have teamed up with our friends at Walker Books for your chance to win not 1 but 3 books from the brilliant duo Jon Klassen and Mac Barnett.
This lovely trilogy recounts the adventures of three friends Triangle, Circle and Square. In one, we meet Triangle who plays a trick on his friend Square. In another, we learn about Square's big daily workout and in the most recent the two visit their friend Circle who lives by a waterfall.
To be the lucky winner of these charming books, simply answer the following question in the Comments box below.
What is your favourite shape?
We will pick 2 winners at random on June 7th. Good luck!
Before you take part, please read this blurb: