Publisher
- Department for Education100
- John Catt84
- The Scottish Government73
- HarperCollins e-books43
- HarperCollins40
- Department of Education37
- Zonderkidz28
- Harper27
- HarperTeen24
- Harper, an imprint of HarperCollinsPublishers23
- British Standards Institution22
- Hodder Education22
- Palgrave Macmillan22
- Education and Training Inspectorate19
- Puffin19
- Zondervan17
- [Department of Education]16
- Controlled Schools' Support Council12
- Public Health England11
- Bloomsbury10