The physical Amazon book stores are incredible in that regard. Every section has nothing but the top books. I recently was in the market for books to learn Japa

The physical Amazon book stores are incredible in that regard. Every section has nothing but the top books. I recently was in the market for books to learn Japanese. The tiny Amazon store had the top three books. The huge and famous Powell's in Portland had obscure books (some of the were cool and are now on my "once I got the basics down"-list), but none of the top books you'd expect to find.