Ian Graham is an experienced writer based in England. He has written and co-written more than 270 books, mainly for children and teenagers.
Carles Ballesteros was born in Badalona, near Barcelona, in 1977. He now lives in Santiago de Chile and has lived there since 2011, where he teaches illustration classes at the local University and works as an illustrator for various publishers. Carles uses a mixture of traditional drawing skills with digital techniques to create his work.