Can someone recommend me a good book to learn photography better?

Hello,

I'm a semi-advanced Canon user. Own a 5D mk2, a 17-40, Tamron 28-75, Canon 70-200 f2.8, Sigma 150mm macro, 400mm F4 IS US DO plus a 430EX II flash.

I've been photographing as a hobby for a couple of years but need some new input, something that can make me help think a bit fresh. My kit is propably waaaay ahead of my skill level at the moment.

Any good books out there?

Best regards,

Thorstein Korsvold