An excellent book for learning the basics. Lays the foundation for avoiding situations in which you must employ self-defense measures and what to do if those situations cannot be avoided. Not a substitute for hands-on training, but if you're a complete rookie to the concepts of armed self-defense here are the nuts and bolts of the field.
Asimov is always a good read, including when he's explaining things.He writes fact as good as he writes fiction. This excellent 1977 offering is one of many excellent essay collections that Asimov has produced. While meticulously accurate almost all the time Dr Asimov's essay about the impending man caused ice age provides some interesting hisorical perspective on current climate arguments.
Solid writing, real people in edge-of-sanity situations as implacable, unfeeling mechanical death seeks them out. The original Berserker short stories, some of which establish deep background for the later Berserker tales. Good stuff.
Subject matter is as the title suggests. Well written, good read. Author makes it interesting because the author is interested. As in depth as possible without the heavy math. Lots of pictures and diagrams.