- Het Grote Weetjesboek over de Bosmarmot
- Historical Animals
- History Comics: The American Bison
- History Comics: The Wild Mustang
- Homecoming Tales
- Hope, The Big Headed Cat
- Horse Heroes
- Horses
- How they live... Bees
- How they live... Beetles
- How they live... Birds and nestboxes
- How they live... Butterflies and Moths
- How they live... Caterpillars
- How they live... Dragonflies
- How they live... Insectivores
- How they live... Ladybirds
- How they live... No joke animals
- How they live... Predators
- How they live... Snails and Slugs
- How they live... Spiders
- HOW TO ADOPT A PELICAN
- How to Become a Veterinarian
- How to look after a dog
- How to Raise Monarch Butterflies