The 2019-20 Panini Prizm Premier League checklist is an important tool for collectors and fans of the Premier League. It contains information on all of the cards in the set, including player information, team information, and card numbers. This allows collectors to keep track of their collection and know what cards they need to complete it. Additionally, the checklist can be used as a reference for fans who want to learn more about the players and teams in the Premier League.