100,000 Whys for Curious Kids: The Illustrated Encyclopedia of Brain-Boosting Answers to Life’s Biggest Questions That Turn Clever Kids into Smart, Confident Thinkers - Screen-Free Fun for Ages 6–10
The Rare and Unusual Knowledge Book for Smart Girls: Interesting Facts for Intelligent & Curious Kids and Teens - Mind Games, Trivia, Puzzles, Riddles and Fun Screen-Free Activities