Sink or Swim: Adult Activity Book Vol 2 Number Crosswords and Mandala Coloring

Number crosswords and mandala coloring in one activity book? That's going to be hours of fun and challenge! Yes, adults still need to be challenged occasionally. The purpose is no longer to hone your skills but to keep your mind active and sharp. You're doing this because you want to be more productive and you want to keep Alzheimer's away.