Most racquets are made from graphite as it's light weight but also provides good power as well as control, making them perfect for any beginner. Other racquets suitable for beginners are made from light-weight aluminum or titanium, as these also provide good power but a better feel for the ball when striking it. Boron or Kevlar racquets are the lightest, but they're also quite stiff, resulting in the vibrations being transmitted to the arm if the sweet spot is missed. These racquets are more often used by advanced players. Wood and fiberglass racquets can be used, but you probably won't play your best game with them. Overall, the lightest racquets aren't necessarily the easiest for beginners to use because you have to swing harder and in doing so, you jeopardize accuracy and control