美国Harper Collins 所出版的Let's Read And Find Out Science系列，是由美国Hayden天文馆馆长Dr. F. M. Branley及知名幼教专家Dr.Roma Gans联合主编，结合国外数十位一流科学、文学、教育、插画家历时多年创作而成。本系列放弃一般自然科学艰涩写实的编写技法，改以文学性的句子来表达，文字优美适合朗读，将语言学习、生活礼仪、美感经验、地理知识及世界观融合于整套书中。依文字难易与科学概念的深浅度粗分为Stage 1 & Stage 2。书末皆有与该书主题相关的动脑问题、动手操作的简单小实验及可作为延伸阅读的相关资讯，让知识的吸收不再只是纸上谈兵！
该书系出版超过10年时间，10多年来，Let's Read And Find Out Science已经成为美国小朋友吸收科学知识的必读书系之一。
书目L1共有41本书，但目录里只有36本
第1级36本
1-1 How Many Teeth?
1-2 I'm Growing!
1-3 My Feet
1-4 My Five Senses
1-5 My Hands
1-6 Sleep Is for Everyone
1-7 Animals in Winter
1-8 Baby Whales Drink Milk
1-9 Big Tracks,Little Tracks
1-10 Bugs Are Insects
1-11 Dinosaurs Big and Small
1-12 Ducks Don't Get Wet
1-13 Fireflies in the Night
1-14 From Caterpillar to Butterfly
1-15 From Seed to Pumpkin
1-16 From Tadpole to Frog
1-17 How Animal Babies Stay Safe
1-18 How a Seed Grows
1-19 A Nest Full of Eggs
1-20 Starfish
1-21 A Tree Is a Plant
1-22 What Lives in a Shell?
1-23 What's Alive
1-24 What's It Like to Be a Fish?
1-25 Where Are the Night Animals?
1-26 Where Do Chicks Come From?
1-27 Air Is All Around You
1-28 The Big Dipper
1-29 Clouds
1-30 Is There Life in Outer Space
1-31 Pop!
1-32 Snow Is Falling
1-33 Sounds All Around
1-34 A Cavity Is a Hole in Your Tooth
1-35 Everybody, Move Your Feet!
1-36 Why Can't I Have Cake for Dinner?
第2级73本
1 Germs Make Me Sick!
2 Hear Your Heart
3 The Skeleton Inside you
4 What Happens to a Hamburger?
5 Why I Sneeze, Shiver, Hiccup, and Yawn
6 Your Skin and Mine
7 Almost Gone
8 Ant Cities
9 Be a Friend to Trees
10 Chirping Crickets
11 Corn Is Maize
12 Dolphin Talk
13 Honey in a Hive
14 How Do Apples Grow?
15 How Do Birds Find Their Way?
16 Life in a Coral Reef
17 Look Out for Turtles!
18 Milk from Cow to Carton
19 An Octopus Is Amazing
20 Penguin Chick
21 Snakes Are Huntes
22 Spinning Spiders
23 What Color is Camouflage?
24 Who Eats What?
25 Who Lives in an Alligator Hole?
26 Why Do Leaves Change Color?
27 Why Frogs Are Wet
28 Wiggling Worms at Work
29 Zipping,Zapping,Zooming Bats
30 Did Dinosaurs Have Feathers?
31 Digging Up Dinosaurs
32 Dinosaur Bones
33 Dinosaur Tracks
34 Dinosaurs Are Different
35 Fossils Tell of Long Ago
36 What Happened to the Dinosaurs?
37 Floating in Space
38 The International Space Station
39 Mission to Mars
40 The Moon Seems to Change
41 The Planets in Our Solar System
42 The Sky Is Full of Stars
43 The Sun: Our Nearest Star
44 What Makes Day and Night
45 What the Moon Is Like
46 Down Comes the Rain
47 Feel the Wind
48 Flash,Crash,Rumble,and Roll
49 Sunshine Makes the Seasons
50 Tornado Alert
51 What Will the Weather Be?
52 Archaeologists Dig for Clues
53 Earthquakes
54 Follow the Water from Brook to Ocean
55 How Mountains Are Made
56 Let's Go Rock Collecting
57 Oil Spill!
58 Volcanoes
59 What's So Bad About Gasoline?
60 Why Are the Ice Caps Melting?
61 You're Aboard Spaceship Earth
62 Day Light, Night Light
63 Energy Makes Things Happen
64 Forces Make Things Move
65 Gravity Is a Mystery
66 How People Learned to Fly
67 Switch On,Switch Off
68 What Is the World Made Of?
69 What Makes a Magnet?
70 Where Does the Garbage Go
71 Where Did Dinosaurs Come From?
72 Where Do Polar Bears Live?
73 What Happens to Our Trashl
我的自然生态图画书系——绝佳的自然观察和环境教育图书（全六册，随书附赠精美CD光碟，一段精彩的自然之旅，一部来自德国巴伐利亚森林里的天籁之音。听，花园里是谁在鸣唱？快，和我一起体验声情并茂的大自然吧！）
《小瓢虫和草地上的伙伴》
《小刺猬是怎样长大的》
《小松鼠是如何生活的》
《小狐狸和森林里的动物》
《小山雀和它的朋友们》
《小蜜蜂的生活日记》