This is a text and practice questions regarding law and taxation, September 2025 edition. It is the latest edition. Applicable from the December 2025 exam. There is no writing in it, but two out of the four books have bumped corners. Please check the second photo. The text & problem sets from the Sonpo University are not always available for purchase and become unavailable when out of stock. Individual sales are not accepted. It is a set purchase only.