Martha Mumford has loved children's books forever. Her mother was a librarian, which gave her access to a wonderful array of books from a very early age. She has written many picture books for Bloomsbury, including the bestselling books in the Bunny Adventures series, which has sold over 2.4 million copies worldwide. Martha lives in Berkshire with her husband and young daughters.

Ag Jatkowska graduated from the University of Fine Arts in Gdansk, Poland with a MA in Graphic Design and Illustration. Having dreamt of being an artist from a young age, she has a particular fondness for drawing animal and child characters, crafting their personalities through their designs and bringing them to life on the page. When she isn't drawing, she loves yoga, travelling and trekking through nature with her husband.