Publisher
- HarperCollinsPublishers15
- Orion Spring15
- Penguin Life15
- Macmillan14
- Springer14
- Aster13
- Gill Books13
- HarperCollins e-books13
- O Books13
- Cornerstone Digital12
- Hachette Books Ireland12
- Harper Thorsons12
- Pearson12
- Grupo Nelson11
- Headline Home10
- Icon Books10
- Rowman & Littlefield Publishers10
- Hachette Australia9
- HarperCollins9
- Sheldon Press9