Learn about electricity, sound, forces & machines.

The Bobbsey Twins dodge a neighborhood bully and search for their missing cat Snoop.

Strange sounds are coming from the attic, and the Bobbsey twins must solve the mystery.

In tiny Grasslands, Texas, Maddie Wallace has discovered siblings she never knew existed—including a twin sister. When ranch foreman and single father Ty Garland hires her as nanny for the daughter he just discovered, it's only temporary. The handsome loner thinks she's just a glamorous city gal in borrowed cowgirl boots. He knows the type. And he expects her to hightail it back to Fort Worth the minute she sorts out her family secrets. But...

"When he returns to Texas from overseas, U.S. Marine Carter Wallace makes good on a promise. To tell a fallen soldier's wife that her husband loved her. But widowed Savannah Blackmore, pregnant and alone, shares a different story with Carter--one that tests everything he believes. He brings Savannah back to the Triple C ranch, where family secrets--and siblings he hadn't known about--await him. Now the marine who never needed anyone suddenly needs...

Do your kids know how the free market works? Ethan and Emily Tuttle have grown up taking for granted the many things they use: clothes, cars, homes, backpacks--even something as simple as a pencil. In this fun adventure to an amazing factory, the twins learn why even the common pencil is a miracle--one that nobody actually knows how to make--and how the process by which it is made is the key to prosperity in our modern age. Based on the classic essay...

Join Ethan and Emily Tuttle in their exciting third adventure, as they uncover the curious mystery of how a powerful creature is stealing their grandparents' hard-earned savings, and how the twins are also being controlled by the same creature--without even knowing it! In honor of the classic The creature from Jekyll Island by G. Edward Griffin, this book introduces children to the history and nature of money, banking, inflation, savings, and bartering...

A twisted tale of unintended consequences unfolds! History abounds with examples of government officials making decisions, well-intentioned or otherwise, that harm others. Unfortunately, these unintended consequences are never anticipated, and rarely considered once they occur. As the Tuttle twins find in their latest adventure, central planning can ruin people's lives. Nobel prize-winning economist F.A. Hayek's famous book The Road to Serfdom comes...