This book is not "The Amateur Astronomer's Ultimate Guide...". It is incomplete, biased and unorganized. If you are looking for the author's views of select products and companies the author has chosen to include, then perhaps this book has some merit. If you are looking for an objective analysis of products based upon solid research and the reported results of consumer surveys, you will be disappointed. This book fails to measure product pros and cons, even of those featured, in a consistent and intelligible manner. As a result, when trying to select between two or more similar products, you are left comparing apples to oranges. For example, there are product specification tables in the appendices, but there are not feature rating comparison tables. As a result, the book rambles from one product to the next covering and/or omitting features randomly. If you are just beginning in astronomy, it will definitely whet your appetite for what's out there, but that's where it stops. Finally, on pages 107-8, the author mentions that an unnamed company's products were omitted from this edition of this book based upon the author's personal experience with that company. Even more, the reader is actually invited to compare this edition with the previous and figure out what company's products were omitted! The manner chosen to deal with this company and its products aids in making the book even more incomplete and biased, and does not serve serve the astronomy community well. (Note that I am NOT from that company). This is where survey comparables would have been beneficial. Despite a less than favorable experience, the author did get his money refunded. The company should have gotten a "satisfaction" or "performance rating" based upon cumulative data collected from previous customers, and its products included.