You should. They are good.
The Midwych Cuckoos was filmed ... badly ... as Village Of The Damned.
The Kraken Wakes will remind you of X-Com 2 and a few other things.
The Day Of The Triffids is an excellent book about humanity in a collapsing society. There's a film of the same name that has some superficial similarities in plot, but noone's ever made a film of the book.
Trouble With Lichen is about people and society and how they respond to things.
Web is the creepiest, crawliest and bleakest of the lot. It's also about ===><=== this far from coming true, compared to the others.