You can make 16 invisible sports figures magically appear in this fun-filled little activity book. Just rub the blank areas of each picture with a pencil to find out which sports allow players to hit the balls with their heads, who's catching the ball at home plate, who has just scored a "hole in one," what sport was first played by Native Americans, and much more.Sure to delight young sports fans, this little book is a fun way to introduce children to popular athletic activities.