I admire your persistence. I read them all many years ago when I was young and eager, with a memory like a sponge. I doubt that I have the fortitude to get thru them all again nowadays. I feel the same way about the Foundation series, and the original 6 Dune books. I read them all so long ago that I retain the basic framework but the details to flesh out the experience would mostly seem new again to me (with the exception of the first book, Dune. It's locked in. ). I recall devouring all of these series. I'd finish a book, mull it over in my head for a couple of days and then jump right into the next book. I miss being young sometimes.