- Race to the Finish
- Rachel Carson
- Rachel Carson and Ecology for Kids
- Rain Tonight
- Rainbow Rain
- Rainbows and Light
- Rainforest Animals for Kids: Wild Habitats Facts, Photos and Fun Children's Environment Books Editi...
- Rangipo
- Raptor Facts For Kids 9-12
- Really Yucky Stuff (That's Gross Volume 2)
- Recetas con ciencia
- Recycle Riches
- Recycling
- Red Sky Burning
- Reduce, Reuse and Recycle : The Secret to Environmental Sustainability : Environment Textbooks Chil...
- Regions and Rivers of Georgia
- Remarkable Plants
- Renewable Energy Sources
- Renewable Energy Sources - Wave, Geothermal and Biomass Energy Edition : Environment Books for Kids ...
- Renewable Energy Sources - Wind, Solar and Hydro Energy Edition : Environment Books for Kids Childr...
- Rescue
- Research Scientist
- Resisters
- Retorno a ayer
- Retos asombrosos
- Rhinos in Nebraska
- Rhinos Reise
- RHS Let's Get Gardening
- Richard St. Barbe Baker: Child of the Trees
- Ripley Twists: Extreme Earth
- Ripley Twists: Human Body
- Ripley Twists: Space
- Roald Dahl's James's Giant Bug Book
- Roald Dahl: George's Marvellous Experiments
- Robert Winston Science Squad Explains
- Robot Universe
- Robots and the Whole Technology Story
- Robótica e inteligencia artificial (Futuros Genios 5)
- Rock Box Mystery
- Rock Collecting for Kids
- Rocket Night
- Rocket Science
- Rocks
- Rocks and Minerals
- Rocks and Minerals (Fourth Grade Science Experiments)
- Rocks and Minerals : 2nd Grade Science Workbook Series
- Rocks and Minerals of The World
- Rocks and What We Know About Them - Geology for Kids Children's Earth Sciences Books
- Rocks Gems and Minerals for Kids Facts Photos and Fun Childrens Rock Mineral Books Edition
- Rocks Of The World
- Roma, la guerra dei rifiuti
- Rosa Pionera y las Remachadoras Rechinantes (Los Preguntones 1)
- Rosa Pionera, enginyera (Els Preguntaires)
- Rosa Pionera, ingeniera (Los Preguntones)
- Rosalind Franklin
- Round about the Seashore - With Eight Coloured Pictures
- Ruby the Red Worm's Dirty Job
- Ruf der Tiefe
- Rules and Red Tape: A Prism for Public Administration Theory and Research
- Rules at School
- Rules of Attraction
- Rund um das Wasser - Lernen an Stationen
- Russia For Kids: People, Places and Cultures - Children Explore The World Books