Series starting with H
- Harper Connelly
- Harper Falls
- Harper Hall of Pern
- Harper Perennial Olive Editions
- Harper's
- Harper Via
- Harriet Beamer
- Harriet the Spy
- Harrigan Family
- Harris and Bostock
- Harris Brothers
- Harris Brothers World
- Harrison Investigation
- Harrison Raines
- Harrison's
- Harrison's Endocrinology
- Harrison's Manual of Medicine
- Harrison's Neurology in Clinical Medicine
- Harrison's Principles of Internal Medicine
- Harrow County
- Harry
- Harry and the Bucketful of Dinosaurs
- Harry and the Dinosaurs
- Harry Arno
- Harry Bosch
- Harry Bosch Universe
- Harry Hole
- Harry Houdini
- Harry Houdini Mysteries
- Harry Kaplan
- Harry McCoy
- Harry Potter
- Harry Potter: A Journey Through...
- Harry Potter: Film Vault
- Harry Potter Series
- Harry Potter Universe
- Harry the Clever Spider
- Harry the Dog
- Harry Weatherholtz
- Hart and Mercy
- Hart Hill
- Haruhi Suzumiya
- Harvard Business Review
- Harvard Business Review Classics
- Harvard Business Review Collections
- Harvard East Asian Monographs
- Harvest Bay
- Harvey Moon
- Haslar Hospital
- Hate and Chaos Duet
- Hater
- Hatter M
- Hatter Madigan
- Haunted
- Haunted America
- Haunted Canada
- Haunted Cemeteries
- Haunted Hearts Legacy
- Haunted Places
- Havemercy
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