Publisher
- Harper Teen1
- HarperCollins Children's Books1
- HarperCollins Publishers1
- HarperCollins e-book1
- HarperCollinsChildrensBooks1
- HarperSanFrancisco1
- HarperTeen1
- HarperTeen, an imprint of HarperCollins Publishers1
- Harris Meltzer Trust Made available through hoopla1
- Hot Key Books1
- How To Books1
- Icon Books1
- Karnac1
- Katherine Tegen Books, an imprint of HarperCollinsPublishers1
- Kelpies/Floris Books1
- Lexington Books1
- Liverpool University Press1
- Mills & Boon1
- No Exit Press1
- O Books1