Some of my happiest memories are of browsing in bookstores. But I haven't done much of that in years. The only big one in Center City Philadelphia is Barnes & Noble on Rittenhouse Square, and I don't find it pleasant to browse there. There is, of course, Joseph Fox Books, but I don't get up that way too often these days. On the other hand, browsing online a few weeks ago, I discovered a book called What Can You Say About God (Except "God"), by William A. Luijpen, who wrote Existential Phenomenology, which was one of my metaphysics texts in college. It is the best book on God that I have ever read. It is out of print and I doubt I would have found it in any bookstore.