I went through someone's thread asking regarding a popular science book, a considerable time ago. I got the impression that the more knowledgeable members in the discussion did not approve of most popular science books (if my memory serves me right the point mainly was that it gave people the impression of knowing stuff which they didn't). (As it was some time ago so I do not remember the exact discussion,arguments etc). So I just want to know what's your view regarding popular science books and documentaries? Good, more bad than good or a fair share of both?