Wide coverage of Science
This is a real old book, mine original, now reprinted. It covers the whole spectrum of Sciences at a low enough level to make sense. By reading the book, one can also link together what had seemed to be disjointed parts of science. Although written a long time ago, most is the same theory that is now in use. As a pocketbook, it will bring you up on a subject that you are not familiar with or will remind you of what you might have forgotten.
A good book, original or reprint.