Publisher
- A & C Black1
- Andrews UK1
- Avon Impulse HarperCollins1
- BBC Books1
- Balzer + Bray1
- Bloomsbury Childrens1
- Cambridge Scholars Publishing1
- Constable & Robinson1
- Constable & Robinson Ltd1
- Egmont1
- Harper1
- Harper, an imprint of HarperCollins Publishers2
- Harper, an imprint of HarperCollinsPublishers1
- HarperCollins2
- HarperCollins Children's1
- HarperCollins Publishers1
- HarperCollins e-books2
- Puffin2
- The History Press1
- The History Press Ireland1