Includes 26 books, #1 thru #27 (missing #10). All 1st Printings. Books overall in great shape; a few have the original retail sticker from the 90's on the back cover, and #4 has a very small tear on the back left side. All but #4 have only mild bumping & rubbing around edges/corners. No stains. Inside of front/back covers has yellowing from age, pages are clean & unmarked, no yellowing to pages. A great set for a new or current collector!