You're looking at the Second Edition of Exploring Worship (brown cover). We're still making this version available, even though there's now a Third Edition of Exploring Worship, because this Second Version has a Workbook to go with it. The new Third Edition has no accompanying Workbook. Get this brown-covered version only if you want to have a book/workbook combo for your class. If you don't want to use the Workbook, then get the Third Edition of...