Kathy Willis is the director of science at the Royal Botanic Gardens in Kew, England. She is also a professor of biodiversity in the zoology department at the University of Oxford and an adjunct biology professor at the University of Bergen. She has authored or co-authored more than one hundred scientific publications, including the landmark book The Evolution of Plants . This is her first book for younger readers. Katie Scott studied illustration at the University of Brighton before moving to London. Her clients include the New York Times and Nike, and her album cover for Bombay Bicycle Club was nominated for Best Album Artwork at Britain's NME Awards.