THIS amazing puzzles will provide hours of entertainment. Solving puzzles is good for your brain.It: Stimulates your mind Improves ability to focus Reduces chances of feveloping Alzheimer disease by keeping your brain active Gives you pleasure and relax Features of this book: 500 medium and hard level puzzles 200 easy and 300 normal difficulty level puzzles 6 puzzles per page format 130 pages large format 8,5x11 inch for your convenience Solutions at the end of the book (12 solutions per page) premium matt soft cover Grab your copy now and start solving them! This is perfect gift idea for everyone who loves puzzles. This book is part of a series that includes 30 books (with different difficulty levels)