Publisher
- Springer35
- Routledge28
- Palgrave Macmillan15
- Quercus12
- Cambridge Scholars Publishing11
- Bloomsbury Academic10
- Springer International Publishing9
- Edinburgh University Press6
- Springer Science and Business Media Springer6
- Teach Yourself5
- Andrews UK4
- Continuum4
- Springer Nature4
- Wiley Blackwell4
- DK Children3
- Dorling Kindersley Limited3
- Pearson3
- Cambridge Scholars Press2
- Cassell Illustrated2
- DK2