Publisher
- British Standards Institution4
- Kyle Books4
- Bloomsbury3
- Ryland Peters & Small3
- Academic Press2
- BBC Books2
- Cassell Illustrated2
- DK2
- Fair Winds Press2
- Hachette India2
- Hodder & Stoughton2
- Quarry Books2
- Race Point Publishing2
- Robinson2
- Rutledge Hill Press2
- Voyageur Press2
- Woodhead Publishing2
- Alpha1
- Amberley Publishing1
- BBC Digital1