BEFORE PURCHASING please download free samples of puzzles-in-puzzles from kookypuzzlelovers.com. It's under the Freebies. The grid is 27x37 and covers an entire 8.5x11 page. There are over 300 words per puzzle. These puzzles were developed to be a little harder than volume 1-3. The longer words were removed to make it a little more challenging. If you're moving up to a more challenging puzzle start with volumes 1-3. Even though there are only 48 HUGE puzzles, the smaller ones add up to over 300 puzzles. These puzzle are medium to difficult depending on your expertise. This puzzle book is NOT large print. This puzzle book is NOT spiral bound.