Jen Campbell is a bestselling author and award-winning poet. She has written twelve books for adults and children, spanning nonfiction, fiction, poetry and picture books. Those titles include the Franklin and Luna series, and The Sister Who Ate Her Brothers. She is also a book reviewer and disability advocate, and she gives talks on the history of fairy tales across the UK. Find out more at: jen-campbell.co.uk.

Valentina Toro was born in Medellín, Colombia. Her father is a great illustrator, and watching him draw inspired her to become an illustrator too. Valentina studied graphic design as well as Creative Writing. She started publishing her own books in 2013 and since then hasn't stopped making stories for children. She has illustrated many different picture books, and children's literature has given her the opportunity to collaborate with talented writers from other countries.