A crossword puzzle book benefits a diverse number of people by keeping their mind occupied. A puzzle book helps a person to keep his or her mind off of thoughts that may be troublesome. Crossword puzzles force a person to think about the puzzle; therefore a crossword puzzle book is a great stress reliever. Puzzles are a useful tool to use when attempting to enhance the mind's complex activity. Puzzles, especially crosswords, demand a person to think and use logical thinking.