Mark Ruffle
Books
- Discovery Plus
- Transportation
- Mapping South America
- Mapping Australia and Oceania, and Antarctica
- Nature at Work
- Everyday STEM Technology - Future Technology
- Construeixo un T.REX
- Year 3
- Space Station Academy : Destination
- Moon
- Space Station Academy Destination Saturn
- Let's Go to Mars
- Humanimal
- 70 Thousand Million, Million, Million Stars in Space
- Ten Thousand, Eight Hundred and Twenty Endangered Species in the Animal Kingdom
- Ten Thousand Poisonous Plants in the World
- Space Station Academy
- Insan Vucudu Nasil Calisir
- Collins Peapod Readers - Level 3 - Who Cleans the Streets?
- About Animals
- Incredible Infographics!
- Mapping Asia
- Destination - Neptune
- Humans at Work
- Construyo un T.REX
- Construeixo el cos humà
- Collins Big Cat - Let's Go to Mars
- Zip Zap Man
- Human body
- Space Station Academy Destination The/Sun
- Space Station Academy Destination Neptune
- Dinosaurs and Other Prehistoric Creatures
- 30 Million Different Insects in the Rainforest
- 100 Trillion Good Bacteria Living on the Human Body
- Seven Quintillion, Five Hundred Quadrillion Grains of Sand on Planet Earth
- Build the T. Rex
- Humanimal
- So Many Questions
- About Plants
- About Transport
Author data: Open Library