Under $20

Find out how these fun, stackable blocks became the most popular toys in the world.The LEGO toy company was founded in 1934 by a Danish carpenter w...

Find out all about NASA in this out-of-this-world addition to the What Was? series. The National Aeronautics and Space Administration, better known...

Relive the moments when African Americans fought for equal rights, and made history.Even though slavery had ended in the 1860s, African Americans w...

We the people at Who HQ bring readers the full story--arguments and all--of how the United States Constitution came into being. Signed on September...

Step back in time to the birth of America and meet the real-life rebels who made this country free!On a hot summer day near Philadelphia in 1776, T...

Hear ye, hear ye! Get ready to learn all about the most powerful court in the United States.Ever since it was established in 1789, the United State...

This delightful board book by renowned author-illustrator team Laura Numeroff and Lynn Munsinger celebrates all the wonderful things sisters can do...

From the creative parents who brought us the web sensation "Dinovember," comes photographic proof of what mischief toy dinosaurs can get up to at s...

From the creative parents who brought the world the web sensation "Dinovember" comes photographic proof of what toys get up to when the rest of the...

From the team that brought us the internet sensation "Dinovember" and the bestselling book What The Dinosaurs Did Last Night comes this hilarious ...

Kids can get creative with more than 60 drawings that depict a delightful variety of sea creatures, each with something missing. Budding artists ca...

A terrifying attack! On December 7, 1941, Japanese war planes appeared out of nowhere to bomb the American base at Pearl Harbor in Hawaii. It was a...

How did a spontaneous protest outside of a New York City bar fifty years ago spark a social movement across America? Find out about the history of ...

Land ho! Discover what the Age of Exploration was all about in this wonderful addition to the bestselling Who HQ series!Before the fifteenth centur...

Travel back to the time when the mighty dinosaurs ruled the earth.The Age of Dinosaurs began about 250 million years ago. In the beginning they wer...

The Berlin Wall finally came down in 1989. Now readers can find out why it was built in the first place; and what it meant for Berliners living on ...

"No Taxation without Representation!" The Boston Tea Party stands as an iconic event of the American Revolution—outraged by the tax on tea, America...

Learn more about the history of the feast that started off as a harvest celebration and has now become a national holiday.After their first harvest...

On October 29, 1929, life in the United States took a turn for the worst. The stock market – the system that controls money in America – plunged to...

A thoughtful and age-appropriate introduction to an unimaginable event—the Holocaust.The Holocaust was a genocide on a scale never before seen, wit...

A mesmerizing overview of the world as it was when glaciers covered the earth and long-extinct creatures like the woolly mammoths and saber-toothed...

Oh, rats! It's time to take a deeper look at what caused the Black Death--the deadliest pandemic recorded in human history.While the coronavirus CO...

For more than one hundred years, people have been captivated by the disastrous sinking of the Titanic that claimed over 1,500 lives. Now young read...

No one knows where the term Underground Railroad came from--there were no trains or tracks, only "conductors" who helped escaping slaves to freedom...