Older and Wiser: How to Maintain Peak Mental Ability for as Long as You LiveRichard RestakHäftad, 2014244 kr
The Playful Brain: The Surprising Science of How Puzzles Improve Your MindRichard Restak, Scott KimHäftad, 2011326 kr
The Playful Brain: The Surprising Science of How Puzzles Improve Your MindRichard Restak, Scott KimHäftad, 2011326 kr