Pragmatic Programmers

What's your opinion on their books? I found the Pickaxe book (the Ruby book) very good. I've been reading a lot of their stuff and I'm learning stuff.

I move on to deeper books, though.

The only book with the word "Pragmatic" in it that I've read is "Programming Language Pragmatics", published by Elsevier. It's about designing programming languages. Read that instead of some Ruby bullshit.