Join Ethan and Emily as they embark on their second adventure, learning about how something as simple as a pencil is a miracle—one that no single person knows how to make!

In this second book of the Tuttle Twins series, Mrs. Miner leads the twins and their classmates on a fun field trip to learn how pencils are made using parts from all over the world—and how in an economy, people from all over the world work together in harmony to produce helpful products that improve our lives.

Teach your kids about the free market with a fun story and bright, engaging illustrations!