I got this book for my 16th birthday. Ten years later I still found it to be informative. Currently it is out of print and a little out of date. However, the basic concepts in this book are priceless. It covers two types of biology, evolution, classical and modern physical science, earth science and astronomy. I found this book helpful in both high school and college science classes.
Unfortunately it is out print, like I said. Some copies are available at amazon and at used book stores.
Update: Hey, it’s back in print. Not sure how updated it is though.
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