Anne Rooney writes non-fiction for children and adults, and fiction for children. She has written more than 100 non-fiction books, many of them on topics in science and technology. She has also taught at the Universities of Cambridge and York, and has been a Royal Literary Fund Fellow and Lector.

Born in Suffolk, Sarah Ridley lives on the Suffolk/Essex border and is a writer and editor of educational books for children and young people. Recently, a life-long interest in history has led her to write books about the First World War, inspired by reading letters written by soldiers who served in the conflict.

Brothers at War tells the story of uncovering the material held in her own family's archives. Dear Jelly sets letters written by soldier brothers to their younger sisters at its core. Teenage children keep Sarah busy when she isn't tied to her computer, and she relaxes by walking along river estuaries close to her home.

Ryan Wheatcroft was born and raised in Sheffield, where he still lives on the outskirts of the city. He spent his childhood making books in old ring binders with borrowed fax machine paper, which began his love for telling stories with words and pictures.

The interest in storytelling continued to grow and driven by his passion for illustration and design (especially from the early and middle parts of the last century) he went on to study illustration at the University of Lincoln.

Since graduating in 2014 he has worked as an illustrator and he now spends most of his time making pictures for books and magazines.