Some nice package deals on multiple sewing lessons modules for you and your family at a value price. It's a little cheaper than buying individual Lesson Modules, plus some of the Sets are large enough that they qualify to have the company pay the shipping cost for you. Generally folks will start with the Beginner's Unit One set. When the last Lesson in the Unit is begun, order the next Unit Set. This ensures that the student always has the next lesson right there and ready to go when they are, and saves having to worry about shipping times.