『Read Up 1』
Unit 01. The Code of Hammurabi
Unit 02. The Three Climate Zones of West and Central Africa
Unit 03. How Light Works
Unit 04. The Food Chain
Unit 05. Pancakes of the World
Unit 06. The Children of Ancient Rome
Unit 07. National Flags of the World
Unit 08. Sound and Echolocation
Unit 09. The Human Immune System
Unit 10. The Ancient Olympic Games
Unit 11. Medieval Castles
Unit 12. How the Stock Market Works
Unit 13. Sink or Float?
Unit 14. How Spacesuits Work
Unit 15. Inventive Entrepreneurs
Unit 16. The Renaissance
Unit 17. Time Zones
Unit 18. The Forces of Flight
Unit 19. Charles Darwin and Evolution
Unit 20. Michelangelo and the Sistine Chapel Ceiling

『Read Up 2』
Unit 01. Confucius
Unit 02. Traveling the Silk Road
Unit 03. The Birth Order Theory
Unit 04. Desert Adaptations in Camels
Unit 05. Walking for the Mind and Body
Unit 06. Greece's Powerful City-States
Unit 07. The History of Chess
Unit 08. Genetics
Unit 09. The Stages of Sleep
Unit 10. Math in Nature and Art
Unit 11. The History of the Potato in Europe
Unit 12. Great Britain's Industrial Revolution
Unit 13. The Physics of a Roller Coaster
Unit 14. Jellyfish
Unit 15. Loanwords
Unit 16. The Boston Tea Party
Unit 17. The Creation of the Euro
Unit 18. Lunar and Solar Eclipses
Unit 19. Why Study Shakespeare?
Unit 20. Euclid, the Father of Geometry

『Read Up 3』
Unit 01. Greek Philosophers of the Golden Age
Unit 02. The Age of Discovery
Unit 03. Our Shifting Earth
Unit 04. Dance Language Among Honey Bees
Unit 05. The Invention of the Modern Printing Press
Unit 06. Decoding the Rosetta Stone
Unit 07. The Great Depression
Unit 08. Understanding Hurricanes
Unit 09. What Are GMOs?
Unit 10. The History of Salt
Unit 11. The Cultural Advances of Hellenism
Unit 12. Impressionism
Unit 13. The Great Barrier Reef
Unit 14. The Frozen Continent
Unit 15. The Birth of the Skyscraper
Unit 16. The Placebo Effect
Unit 17. Greenwashing
Unit 18. Predicting Volcanic Eruptions
Unit 19. A Star is Born
Unit 20. Inventing the "Talkie"