Instruct: Classify a given review as either positive or negative.
Query: Not for the casual scientist/sci fi reader

Asimov's collection of essays reprinted from various publications touches on topics such as chemistry, physics, electronics and astronomy as well as the philosophy of humanity's usage and development of these sciences. I have to admit that I didn't read them all in their entirety, but rather started them and read until I got bored or my head hurt to much. I am not personally well-versed in any of these areas, and so learned quite a bit. However, the information is rather dated especially in electronics and other technology. This is mostly a collection for the die-hard fan of Asimov, or some of his more scientifically educated fans. I'm pretty sure I thought it was science fiction when I picked it up, probably without even reading the back.