[FatherofFive]

Maybe not top 3, but Childhood’s End by Arthur C. Clarke has always been at the top of my list.

Great book. Was going to post it but you beat me to it.

[A Navy Vet]

I remember it as being a combination of sci-fi, mystery, with some supernatural over tones because humans couldn't figure out the motives of the Overlords. My favorite recent sci-fi movie is now Arrival. Arrival is based on a novella called "Story of Your Life" by Ted Chiang. If you haven't seen it, it's well worth watching more than once.

Any recent favorites of yours?

I know that Hollywood prefers sci-fi aimed at teen and young adult boys like super-heroes and transformers. That's a shame because there are hundreds of novels, novellas, and short stories that have more thoughtful messages and more interesting story lines. Oh well. That's what I get for thinking...haha.