If you cannot afford and or get them in your country here’s a PDF for the three book Kaczynski is most known for.

"The worst aspect of such evils as air pollution, DDT and the garbage put on TV is not the actual harm that these things do us; the really galling thing about them is that we just have to take what society dishes out, be it good or bad. Individually, there’s nothing we can do about it."
-Ted Kaczynski

People say it does not matter since you can replant trees, what they fail to understand is how much deeper than that it really is. It’s not as simple as they make it out to be.