Publisher
- Routledge19
- Dorling Kindersley Limited10
- Hodder Education9
- Cambridge Scholars Publishing8
- DK Children6
- Palgrave Macmillan6
- Austin Macauley Publishers5
- John Murray5
- Penguin Books5
- Profile Books5
- Constable4
- Dorling Kindersley4
- Hodder & Stoughton4
- Manchester University Press4
- Rowman & Littlefield4
- Springer4
- Biteback Publishing3
- Pearson3
- Quercus3
- Vintage Digital3