Books & Workbooks
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To learn more about the books & workbooks, click here
International orders & Bulk orders
If you wish to order more than 10 books or posters at a time & wish to pay by check & invoice -- or -- are ordering copies from outside the continental USA, please click here & email us
All purchases are final. Please be sure to double-check all information provided (ie mailing address) for proper delivery. Sales tax added to all purchases made within Illinois. All purchases final. Please be sure to double-check all information provided (i.e. mailing address) for proper delivery. Sales tax added to all purchases made within Illinois. At times, in the books and workbooks, updates are made (reviews are added/removed from the page 1 reviews page, for example). So, the version of the book or workbook received by the buyer may, for instance, have a different set of page 1 reviews on the first page than those seen on this website.