Publisher
- Aster1
- Astro*Synthesis1
- Avon1
- Bluebird1
- Cambridge Scholars Pub1
- Cornerstone Digital1
- DK Pub1
- Dodona Books1
- Dorling Kindersley Limited1
- FLARE1
- Fair Winds1
- Floris Books1
- For Dummies1
- Hambledon Press1
- Harper Element, an imprint of HarperCollins Publishers1
- Harper Elixir1
- HarperCollins1
- HarperCollinsPublishers1
- HarperElixir, an imprint of HarperCollins Publishers1
- Headline1