exchange

An introduction to money that explains the concept of value, names the American money denominations, and presents a trip to a mint.

An examination of bitcoins, discussing how they work, how they are obtained, their value, and more.

This anthology focus a wide range of viewpoints onto the single controversial issue of the bitcoin, and provides in-depth discussions by leading advocates, a quick grounding in the issues, and a challenge to critical thinking skills.

Presents a children's book for early readers that describes how people years ago traded goods on the barter system rather than using currency.