Phillip K. Dick...brilliant author. Subgenre? Science fiction tops the charts for me :) H.G. Wells? George Orwell? Where can you find writers who have had a greater impact on modern society? The list is long in this 'subgenre'. You are correct. These writers have captured my imagination since I was an adolescent reader.

Ubik is on my list. My son (we share this interest) sent me a copy and it is waiting. Now I'm even more eager to read it.

Great review, @janaveda