Funny how some people remember their first exposure to PKD.
In '68 I found a copy of Counter Clock World in a thrift store for a nickel and figured I couldn't go wrong and it resulted in my reading just about everything he ever wrote.
A slight correction to the article. I know of at least 11 of his stories that have been made into movies which, I think, is more than any author short of Stephen King.
I found EYE IN THE SKY around the same time and was hooked. Still have all my Dick paperback originals.