Now available at Mises.org.
An excellent book! My wife bought this book four years ago to home school our children in economics since many homeschoolers recommend it. I ended up reading it and discovering Austrian Economics for the first time, though I had a concentration in economics in college. After reading the book, I searched the internet for "Austrian School of Economics" and found Mises.org.
Buy it for your children or buy an extra copy to give to your local library or friends.