Build focus. Strengthen memory. Train your brain—one puzzle at a time. This second volume in The Logic Puzzle Collection is designed for adults and seniors ready to move beyond the basics and enjoy a satisfying step up in challenge. Featuring a carefully balanced mix of Sudoku, Nurikabe, and Kakuro puzzles , this book offers a relaxing yet mentally engaging experience that sharpens your thinking without overwhelming you. Whether you're continuing from Volume 1 or jumping in at the Easy–Medium level, you'll find puzzles that challenge your logic, improve concentration, and provide a calm, screen-free way to unwind. Inside This Book: 150 easy-to-medium puzzles across 3 logic types - Large print format for comfortable solving - Gradually increasing difficulty to build confidence - Clear instructions for each puzzle type - A perfect balance of challenge and relaxation Why You'll Love It: Strengthens memory and problem-solving skills - Improves focus and mental clarity - Encourages calm, screen-free relaxation - Ideal for daily brain training Perfect for adults, seniors, and puzzle lovers who want more variety than standard Sudoku books. Part of a 6-Book Progression Series Continue your journey through The Logic Puzzle Collection , designed to take you from beginner to expert: Beginner → Easy/Medium → Medium → Medium/Hard → Hard → Expert Build your skills at your own pace and enjoy the process. And if you're wondering who made this… Seneca Book Press creates books for focus, curiosity, and the beautifully distracted mind—because your brain deserves better than endless scrolling and forgotten thoughts. We make books for people who open a puzzle, solve half of it, get distracted by a snack, come back later… and still finish it like a champion. If your brain enjoys a challenge (and occasionally wandering off mid-thought), this book was made for you. Grab your copy today and keep your mind sharp, focused, and engaged.