Publisher
- Springer65
- Hodder Education32
- Pearson22
- Philip Allan Updates11
- Hodder Gibson10
- Pearson Education Limited7
- Routledge5
- Collins4
- Palgrave Macmillan4
- Springer Netherlands Imprint: Springer4
- DK Children3
- Springer International Publishing3
- Springer Nature3
- CRC Press2
- Cambridge Scholars Publishing2
- Dorling Kindersley Limited2
- Galore Park2
- Humana Press2
- Philip Allan2
- Wiley-VCH2