This is a set of two books: "Reading Comprehension-Focused Systematic Classical Grammar, 9th Edition" and "Reading Comprehension-Focused Systematic Classical Grammar: Companion Notebook, 4th Edition." These are a reference book and companion notebook useful for high school classical grammar study, allowing you to learn thoroughly from the basics to advanced concepts. [Product Name] Reading Comprehension-Focused Systematic Classical Grammar, 9th Edition ・There are minor scratches and corner folds from use, but the contents are clean with no writing. [Product Name] Reading Comprehension-Focused Systematic Classical Grammar: Companion Notebook, 4th Edition, with Answer Key ・Pencil markings have been erased, but there are some pen markings. Please check the photos for details. Thank you.