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Ask Non-Fiction Books in Order
Below you'll find the complete list of Ask Non-Fiction books in publication order. This is generally the recommended reading order for the series.
Reading order verified: April 2026
Quick Answer
What order should I read the Ask Non-Fiction series? Start with "Where Does Garbage Go?" (1991) and follow publication order through all 14 books.
The complete Ask Non-Fiction reading order is listed below in publication sequence.
Publication Order

Where Does Garbage Go?
1991

Why Do We Have Different Seasons?
1991

What is a Shooting Star?
1991

What Happens When I Flush the Toilet?
1992

What's Happening to the Ozone Layer?
1992

How Do Aeroplanes Fly?
1992

What Causes Acid Rain?
1992

Why Are the Rain Forests Vanishing?
1992

Why is the Air Dirty?
1992

Is Our Planet Warming Up?
1992

Why Are Whales Vanishing?
1992

Why Are Some Beaches Oily?
1992

Why Are Animals Endangered?
1992

Why Do People Come in Different Colors?
1993
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