My first aikido teacher told me there were no good books on aikido and he gave me Zen in the Art of Archery by Eugen Herrigel and I still have it. I really liked it (and by chance just a couple of days ago I happened to mention it to someone on here). This is the Wikipedia link.
I'm not sure how relevent this will be to IT, but it looks like a good read. Just grabbed it from Amazon. Thanks!