Lexicon - Max Barry http://divainpyjamas.blogspot.com.au/2013/07/lexicon-by-max-barry.html

Lexicon was a thrilling, mind altering novel that will leave you wondering what the hell were you thinking? It strangely embeds itself into your subconscious and leaves you feeling tired and on the verge of tears. But it was mind blowing. It honestly gave me a headache and I felt like I had sat through a three day long interrogation. I'm questioning if there were some form of subliminal messaging between the lines that I failed to notice, that could be one way to explain the feeling of mental violation.

Lexicon is an intellectual investment, it nearly drove me insane...

And that's a feeling I could become accustomed to.