Someone has put these books for sale on Amazon; for that reason, we allow only one copy of each book per person. If you have a study group, please email us requesting additional books. Make sure and include:  

• The number of people

• The book you want to use

• ​

If you order more than one copy per person, your order will not be fulfilled.

These books are available in the continental US, Canada, Germany, Australia, and New Zealand