A great book for putting "science" in entertaining and relatively easy to understand terms. I was constantly finding myself truly excited by what was being written. This book puts the amazing grandness of the universe into perspective, showing what a miracle it really is that we exist at all, no less that we exist as the highest known form of life. It covers physics, chemistry, biology, geology, paleantology, etc. in a way that ties together and keeps the rader very interested. This is not your college text book. Bryson makes (re)learning fun.