Set of 5 books, includes textbook, test key, quiz/worksheet key, lesson plans, and textbook answer key. All are in decent condition. Textbook cover is slightly wrinkled and its pages have a a small coffee stain at the top (SEE PICTURES). It includes 322 pages. Test key is in very good condition. Includes 40 pages Quiz/worksheet key is also in good condition. Includes 97 pages Curriculum/Lesson plans is in great condition and is very easy to use. Includes 90 pages Textbook answer key is in good condition. Includes 32 pages lesson