I got into reading a lot of sci fi last year by accident really. Im a cat person and I was reading one of the many cat books around. This one mentioned the Heinlein book A Door Into Summer, the cat in the story, Pete lives with his owner in a house with 12 doors or exits, and the cat constantly wants to keep trying all the doors until it finds that one that leads outside to the good weather. That reference made me laugh, because my own cat is just the same! if one door leads out to rain, he will want to try all the other doors in the house until he is satisfied that its rain out of all the doors.
I loved the book, the idea was that the owner wanted to be frozen and wake up in the future, but he had to take his cat with him. Its not in print in this country but I found a second hand copy of it on Amazon. From that I read other Heinlein books and then other authors, notably Philip Dick's Do Androids Dream Of Electric Sheep (later made into Bladerunner).
What I love about this period of the genre, ie 1950's to 1970's science fiction writers, is that they could all imagine very futuristic worlds and space travel, but could not imagine miniaturisation of computers, so computers in these books still tend to fill entire buildings, and the way they treat women!! omg talk about male chauvinism, its hilarious.
Im reading Dune currently, and then im caught up with all the sci fi I bought last year. So now I need to find some more.