Logic, Or Rational Thoughts On The Powers Of The Human Understanding; With Their Use And Application In The Knowledge And Search Of Truth. Translated From The German Of Baron Wolfius. To Which Is Prefixed A Life Of The Author.
Kakuro Puzzle Book For Adults: 300 Logic Puzzles Easy - Medium - Hard Cross Sums Puzzle Book Grid Variety From 6x6 To 13x13 With Solutions Paperback By Ninja Kakuro
Marupeke Puzzle Book For Adults, Volume 3: 50 Logic Picture Puzzles From Easy To Hard: Logic Puzzles: Marupeke ¦ Japanese Tic Tac Toe ¦ Noughts And Crosses Paperback By "Brainbox" Rankin