Publisher
- G. P. Putnam's Sons1
- G.P. Putnam's Sons1
- HQ1
- Hachette Australia1
- Harper & Row1
- Harper Voyager1
- Harper Voyager Impulse1
- HarperCollins Children's1
- HarperCollins Children's Books, a division of HarperCollins Publishers1
- HarperCollins Publishers1
- HarperCollins e-Books1
- HarperOne1
- Headline1
- Hodder & Stoughton1
- Hodder Children's Books1
- Hot Key Books1
- Hyperian1
- Hyperion1
- Hyperion, an imprint of Disney Book Group1
- Katherine Tegan Books, an imprint of HarperCollins Publishers1