A key issue is a book with lasting importance: a first appearance, landmark story, memorable cover, or major creative moment. Your first should connect to something you actually care about.
Pick the story before the grade
Decide why the issue matters to you. A lower-grade copy with strong eye appeal can be more satisfying than stretching for a number that leaves no budget for anything else.
Understand what grade cannot say
Two books with the same numerical grade can look different. Centering, color, page quality, writing, stamps, and defect placement all affect visual appeal.
Ask about restoration
Color touch, trimming, glue, replaced pieces, and cleaning can materially change desirability. Graded labels disclose detected restoration; raw books deserve careful questions and good photographs.
Buy the copy you want to see
A famous label does not make every example attractive. Look at the actual book, choose a reputable seller, and keep records of the listing and purchase.