240 Large Print Cryptograms Our Earth, Sea & Animals Facts & Trivia: with Hints and Answers - Learn About Our Home Planet, Cryptic Ciphers to Stay Sha (Paperback) (ISBN-13: 9781659327786)

• Are You Ready for the Challenge?
• Put on Your Thinking Cap and Decipher These Cryptic Puzzles
• Crack-the-Code on these Fascinating Facts About Mother Earth
• Learn About Earth's Animals, Seas and the Wonder of Our Planet
• Great Fun for Hour and Hours of Learning and Problem Solving
• You know the saying, 'Use it or lose it, 'that goes for our brains, also.
• Large lined work area below each Cryptogram

Many studies have shown that regular puzzle-solvers experience the creation of new pathways and neurotransmitters in the brain. This is believed to aid in preventing mental decline and deterioration as the brain ages.