Ana Sampson is the author of many best-selling anthologies including I Wandered Lonely as a Cloud and Other Poems You Half-Remember from School, Tyger Tyger Burning Bright: Much Loved Poems you Half-Remember, Poems to Learn by Heart, Green and Pleasant Land: Best-Loved Poems of the British Countryside, Best-Loved Poems: A Treasury of Verse, and Wonder: The Natural History Poetry Collection.

Ana grew up in Kent and studied English Literature at the University of Sheffield. After achieving both a BA and an MA, she began a career in publishing PR and has appeared multiple time on radio and television discussing books and poetry. She lives in London with her her husband, young daughter and two cats.

She is Fierce is her first poetry collection for Macmillan.

Chris Riddell, the 2015-2017 UK Children's Laureate, is an accomplished artist and the political cartoonist for the Observer. He has enjoyed great acclaim for his books for children. His books have won a number of major prizes, including the 2001, 2004 and 2016 CILIP Kate Greenaway Medals. Goth Girl and the Ghost of a Mouse won the Costa Children's Book Award 2013. His work for Macmillan also includes the bestselling Ottoline books, The Emperor of Absurdia, and, with Paul Stewart, the Muddle Earth books, the Scavenger series and the Blobheads series. Chris has been honoured with an OBE in recognition of his illustration and charity work. He lives in Brighton with his family.