【This item has been cut】 This is a set of two books: Seminar Chemistry Basics + Chemistry problems and answers (2024, new curriculum edition). I cut and scanned them immediately after purchase, so there are no markings or missing pages. Therefore, you should be able to use them without any problems for studying. Shipping will be via Yu-Packet, with waterproofing and anti-bending measures. Since the books have been cut, the condition is listed as "Poor". Thank you for your understanding. Please feel free to ask any questions in the comments!