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2024 Summer Workbook Sale

Looking to really motivate yourself to continue learning? For a two weeks only, we are offering all of our Workbooks from Unit 1 to Unit 6 for a discounted price of $65! There are eighteen Workbooks in this package, and the total original price is normally $90!

You can continue to purchase Workbooks individually here.

If you live in Korea, you could also send us the funds directly. E-mail us at for more information.

For the first time in a year, we are running a sale on our Workbooks. Two weeks only!