Matt Oldfield (Author) Matt Oldfield is the author of the Unbelievable Football series (winner of the 2020 Children's Sports Book of the Year) and the Johnny Ball: Football Genius series, as well as the co-author of the bestselling Ultimate Football Heroes and Football GOAT series. He has also worked with Lioness Beth Mead on her children's book, Roar , which won the 2024 Children's Sports Book of the Year award. To date, his books have sold over 3 million copies worldwide. Daniel Duncan (Illustrator) Dan grew up in leafy Chalfont St. Giles playing football outside when it wasn't raining, and drawing the rest of the time. In 2013 he graduated from Middlesex University with first class honours degree in illustration, and has worked as a children's illustrator ever since.