Panini football cards feature various types of autographs that enhance their collectibility and value. Key types include base autographs, parallel autographs, and insert autographs, each varying in rarity. On-card autographs are generally more desirable than sticker autographs. Additionally, dual and triple autographs showcase multiple players, while relic autographs combine signatures with game-used memorabilia. Understanding these types helps collectors identify valuable cards for their collections.