A starter set is a curated collection of cards designed to give new collectors a quick on-ramp into the hobby. Instead of diving headfirst into packs and boxes without knowing what you're looking at, a starter set gives you a solid foundation of cards organized around a theme, team, or product line.
Starter sets typically include a selection of base cards, sometimes a few inserts, and occasionally a bonus pack or two. They're priced accessibly and packaged to make the hobby feel approachable rather than overwhelming.
If you're buying cards for someone who's brand new to collecting — or jumping in yourself — a starter set is one of the smartest first purchases you can make. It gets cards in your hands immediately and gives you context for what to chase next.