The Stickipeak Logic Puzzle Challenge: 65 logic grid puzzles with detailed solutions (Challenging Logic Puzzle Books)

The Stickipeak Logic Puzzle Challenge: 65 logic grid puzzles with detailed solutions (Challenging Logic Puzzle Books)

50 Logic Puzzles: Full of Fun Logic Grid Puzzles! (Brain Teaser Puzzle Books)

The Christmas Countdown Logic Puzzle Challenge: 25 Christmas-themed logic grid puzzles with detailed solutions (Challenging Logic Puzzle Books)