A very high-quality book-guide for the game. Excellent construction quality, detail in the description and solutions, plenty of material such as maps, images, etc. It is worth having in your collection, even as a simple book.

I have been buying guide books for years, and this one is perhaps the best I have ever seen. Such quality, meticulous presentation, maps, images, and detailed instructions for the puzzles left me speechless. Honestly, if I could, I would give it ten stars, not five.