Yes, that was a Monty Python reference, but I’m referring to old fashioned bookstores. Unbelievably, there is a book store in DC that I haven’t yet visited. It’s in Petworth and is called Upshur Street Books.
This is just kind of cool – a collection of short reviews of both books in Ace’s ‘Doubles’ series. I just read one with The Caves of Mars on one side and The Space Mercenaries on the other. However, there is no review of that book(s) on this site. But that’s okay. You are quite literally visiting a site – right now – that reviews both those books. There’s a search feature. Feel free to use it.