61 books • 22 series
The Pyramid (My First Discoveries)
Counting (First Discovery)
Animals (First Discovery Art Book) (First Discovery/Art S.)
The Eagle (First Discovery)
Dinosaurs (My First Discovery Paperbacks) (First Discovery Book S.) (First Discovery Sticker Books)
Birds (First Discovery Book S.) (My First Discoveries) (My First Discoveries)
Music (My First Discoveries)
Pictures (First Discovery)
Castell, Y (Cyffro Canfod S.)
Let's Look at Fish Underwater (First Discovery/Torchlight)
Up and Down (First Discovery)
The Toolbox (First Discovery)
La peur du Louvre