If I don't find some interesting reading material soon, I'm going to jump off a cliff. So I'm wondering if you could give me your science book recommendations. Unfortunately, I have to be rather difficult about it. I have a physics degree, and I tend to dislike so-called popular-science books, which are usually written for laypeople without a physics background. What I'm looking for are books at an intermediate level: somewhere between the popular-science book and the technical graduate textbook. Examples that come to mind are: "Cosmology: The Science of the Universe" by Edward Harrison (this is the greatest intermediate-level book ever written, in my humble opinion!) "The Selfish Gene" by Richard Dawkins "Gödel, Escher and Bach" by Douglas Hofstadter "The Computational Beauty of Nature" by Gary Flake "Labyrinths of Reason" by William Poundstone (OK, this is more philosophy than science) Also: Feynman's Lectures, Abraham Pais' biographies of Einstein and Bohr. History and philosophy of science books are welcomed, too, but again, at an intermediate level.