… before it gets made into a TV show.
There have been, I think, two earlier failed starts for a project that turns what might be the number one interstellar long-history science fiction book written. This project looks like it is going to happen. The producer is Apple, so you will probably have to buy their latest computing device to get permission to watch it. (And therein could lie the plot for a very Azimov-like science fiction story…)
Anyway, you need to read the books before you watch the show, so get started. There is no information available as to when this series will be released. And, despite my snark above, it is not know where it will be shown, but it will be streamed. And, it will be in 10 parts.
The three books in the Foundation Trilogy are:
Foundation
Foundation and Empire
Second Foundation
There is a complex publication history, and there are other stories and books, but that is the central bunch of words.
Alternatively, the Foundation Trilogy plus: The Foundation Trilogy (Foundation, Foundation and Empire, Second Foundation), The Stars, Like Dust; The Naked Sun; I, Robot
These may also be among the most commonly available used books in science fiction, so check your local used book store, if you can still find one. (Hint: On line, the cost of one of these volumes, because of their continued popularity, used, is above $4.00 with shipping, with the shipping price dropping as the volume price increases, to make the actual cost per volume between $8.00 and $12.00. So, don’t bother with used on line.)