This PDF book is beautiful, and the small file size (39 MB) makes it very convenient for use on portable devices (e.g., iPhone, iPad, etc.) I haven't seen any flaws on the pages yet, and I love the resolution! With the graphics, you don't start noticing pixels until you get past 200% zoom; with the text, you can zoom to 600%, and the letters still look perfect! In fact, at 600%, the letters look like master-level, hand-written calligraphy! I can't say enough good things about this book! It is, of course, fully indexed and searchable, and is very legible even on small screens (such as the iPhone 5, which is what I have it on.) Add to that the fact that it costs a mere $9.99, and you've got a surefire winner!