Series Title YL Word Count
CDIR (Cambridge Discovery Education Interactive Readers Full Set 96 titles)
CDIR Level 1
CDIR Level 1 Blizzards: Killer Snowstorms 1.6 1,500
CDIR Level 1 Catch a Wave: The Story of Surfing 1.6 1,500
CDIR Level 1 Cool Jobs 1.6 1,500
CDIR Level 1 Crocs and Gators 1.6 1,500
CDIR Level 1 Drink Up! 1.6 1,500
CDIR Level 1 Eat Up! 1.6 1,500
CDIR Level 1 Fantastic Creatures: Monsters, Mermaids, and Wild Men 1.6 1,500
CDIR Level 1 Genius 1.6 1,500
CDIR Level 1 It's Time (To Learn About Time) 1.6 1,500
CDIR Level 1 Jeff Corwin: Wild Man 1.6 1,500
CDIR Level 1 Light in the Night: The Moon, A 1.6 1,500
CDIR Level 1 Paris: City of Light 1.6 1,500
CDIR Level 1 Saved! Heroes in Everyday Life 1.6 1,500
CDIR Level 1 So Cute! 1.6 1,500
CDIR Level 1 Traffic Jams: The Road Ahead 1.6 1,500
CDIR Level 1 Wild Australia! 1.6 1,500
CDIR Level 2
CDIR Level 2 Alaska: Wild and Free 2.0 1,800
CDIR Level 2 Are You Listening? The Sense of Hearing 2.0 1,800
CDIR Level 2 Around Japan in Three Days 2.0 1,800
CDIR Level 2 Deadly Animals 2.0 1,800
CDIR Level 2 Do Not Disturb: The Importance of Sleep 2.0 1,800
CDIR Level 2 Fast: The Need for Speed 2.0 1,800
CDIR Level 2 Feeding Time: The Feeding Habits of Animals 2.0 1,800
CDIR Level 2 Growing Up: From Baby to Adult 2.0 1,800
CDIR Level 2 Life in Mumbai 2.0 1,800
CDIR Level 2 Lost: The Mystery of Amelia Earhart 2.0 1,800
CDIR Level 2 Shoot to Kill: Why We Hunt 2.0 1,800
CDIR Level 2 Slow Motion: Taking Your Time 2.0 1,800
CDIR Level 2 Stealing 2.0 1,800
CDIR Level 2 Wonders of the World 2.0 1,800
CDIR Level 2 Young and Amazing: Teens at the Top 2.0 1,800
CDIR Level 2 Your Dream Vacation 2.0 1,800
CDIR Level 3
CDIR Level 3 Aliens: Is Anybody Out There? 2.4 1,800
CDIR Level 3 Empire: Rise and Fall 2.4 1,800
CDIR Level 3 Greatest Invention of All Time, The 2.4 1,800
CDIR Level 3 How Cool is Cold! 2.4 1,800
CDIR Level 3 Madagascar 2.4 1,800
CDIR Level 3 Magic of Music, The 2.4 1,800
CDIR Level 3 Medicine: Old and New 2.4 1,800
CDIR Level 3 Science of Heat, The 2.4 1,800
CDIR Level 3 Slice by Slice: The Story of Pizza 2.4 1,800
CDIR Level 3 Slime: The Wonderful World of Mucus 2.4 1,800
CDIR Level 3 Swing, Slither, Swim 2.4 1,800
CDIR Level 3 Three in One: The Challenge of the Triathlon 2.4 1,800
CDIR Level 3 Water: Vital for Life 2.4 1,800
CDIR Level 3 Weird Animals 2.4 1,800
CDIR Level 3 What Are the Odds? From Shark Attack to Lightning Strike 2.4 1,800
CDIR Level 3 What Makes a Place Special? Moscow, Egypt, Australia 2.4 1,800
CDIR Level 4
CDIR Level 4 Bones: And the Stories They Tell 2.8 2,300
CDIR Level 4 Bright Lights on Broadway: Theaterland 2.8 2,300
CDIR Level 4 City Experiment: Rebuilding Greensburg, Kansas, The 2.8 2,300
CDIR Level 4 Dangerous and Dirty Jobs 2.8 2,300
CDIR Level 4 Life Online: The Digital Age 2.8 2,300
CDIR Level 4 Mummies and Myths 2.8 2,300
CDIR Level 4 On the Move: The Lives of Nomads 2.8 2,300
CDIR Level 4 Only in America 2.8 2,300
CDIR Level 4 Science of Darkness, The 2.8 2,300
CDIR Level 4 Science of Light, The 2.8 2,300
CDIR Level 4 Shark Attack 2.8 2,300
CDIR Level 4 Sport, Game, or Hobby? 2.8 2,300
CDIR Level 4 Sugar: Our Guilty Pleasure 2.8 2,300
CDIR Level 4 Survival Guide: Lost in the Mountains 2.8 2,300
CDIR Level 4 Sushi Nation 2.8 2,300
CDIR Level 4 Wheel, The 2.8 2,300
CDIR Level 5
CDIR Level 5 Found: Discovery and Recovery 3.2 2,700
CDIR Level 5 Get Smart: Our Amazing Brain 3.2 2,700
CDIR Level 5 Life on the Edge: Extreme Homes 3.2 2,700
CDIR Level 5 Losing It: The Meaning of Loss 3.2 2,700
CDIR Level 5 Mark Your Territory 3.2 2,700
CDIR Level 5 Our Green Future 3.2 2,700
CDIR Level 5 Secrets to a Long Life 3.2 2,700
CDIR Level 5 Venice: The Floating City 3.2 2,700
CDIR Level 5 Weird Weapons 3.2 2,700
CDIR Level 5 What Are You Afraid of? Fears and Phobias 3.2 2,700
CDIR Level 6
CDIR Level 6 Altruism: What's in it for Me? 3.6 2,700
CDIR Level 6 Deep Blue: Discovering the Sea 3.6 2,700
CDIR Level 6 Down to Earth 3.6 2,700
CDIR Level 6 Gold: Greed and Glory 3.6 2,700
CDIR Level 6 Placebo Effect: The Power of Positive Thinking, The 3.6 2,700
CDIR Level 6 Punch: All About Boxing 3.6 2,700
CDIR Level 6 Rescued: The Chilean Mining Accident 3.6 2,700
CDIR Level 6 Traditions of Death, The 3.6 2,700
CDIR Level 6 True Colors 3.6 2,700
CDIR Level 6 Up in the Air: Our Fight Against Gravity 3.6 2,700
CDIR Level 7
CDIR Level 7 Bounce! The Wonderful World of Rubber 4.0 2,900
CDIR Level 7 Bucket List, The 4.0 2,900
CDIR Level 7 Skin 4.0 2,900
CDIR Level 7 Tragedy on the Slopes 4.0 2,900
CDIR Level 7 Turtles: Ancient Symbol / Modern Survivor 4.0 2,900
CDIR Level 7 Water Power: The Greatest Force on Earth 4.0 2,900
CDIR Level 8
CDIR Level 8 Avalanche! 4.4 2,900
CDIR Level 8 Lift Off: Exploring the Universe 4.4 2,900
CDIR Level 8 Money Tree: The Business of Organics 4.4 2,900
CDIR Level 8 Poison: Medicine, Murder, and Mystery 4.4 2,900
CDIR Level 8 Robots: The Next Generation? 4.4 2,900
CDIR Level 8 Trapped! The Aron Ralston Story 4.4 2,900