It is more than ten years old but it still can be considered to be one of the funniest techie books: The UNIX Haters Handbook is mental relief for everybody who has suffered from the insanity of some of UNIX‘s underpinnings. However, don‘t take it too seriously but it is worth a read anyway.
The book was just brought back to my mind because of a stale link being reported on my home page. So I went and looked for an updated page on the book just to find out it has been released in PDF format for free (as in beer). Go get it!