If there is a scientific equation, and i mean a complete blackboard filler, to write the perfect post apocalyptic book, then John W. Vance has the answer. Post apocalyptic books are basically all i read, and more often than not, a good book is spoiled by careless attention to detail. Not a speck of that in Grid Down. John W. Vance is a former marine, and i get the impression this is a subject he knows a heck of a lot about. The characters were really solid and dependable in their reactions. The writing was immense. It tells the story of an EMP attack, and the inevitable collapse of society. Its a frightening tale, made more terrifying by the knowledge you know the author has done his research. I cannot remember the last time i was so engrossed in a book, i didn't want it to end, but this was one. Fortunately i have book 2 :)