If it's for work or for building something useful, the book is a waste of time. If it's for your personal interest, you can read and learn anything you want. P

If it's for work or for building something useful, the book is a waste of time. If it's for your personal interest, you can read and learn anything you want. Personally I avoid books like this one (similar to how I avoid very esoteric languages) because I want to spend my time on things are interesting and useful instead of only interesting.