Keep your mind sharp with stimulating logic problems that will exercise your brain muscles - a great introduction to deductive reasoning! Enjoy easy, medium, hard, and truly tough puzzles in each issue of Original Logic Problems Magazine. Full size, 130 pages.
Original Logic Problems publishes 4 issues a year, but reserves the right to change the number of issues in an annual term, including discontinuing any format and substituting and/or modifying the manner in which the subscription is distributed.