This isn't a book you'll read in one, or even a few sittings, it probably falls in the "coffee table" category. For space / astrophysics geeks, it's fun to pick up and read a few pages, then put down for a few days. Going at this pace, it took me nearly a year to read. Its written in chronological (though not linear) order, from the beginning to the end of time, with each pair of pages (one text, one illustration) devoted to a very specific space related subject. Subjects range from early discoveries, to current technologies, to theories about the future of the universe. Interesting stuff, indeed.