Just got the D90 a couple of weeks ago and am very new to photography. The manual seems to be all over the place. (At the moment I'm trying to get my head around the AF modes - dynamic, auto, 3d tracking etc etc) I'm finding the best thing to do is to google questions that come up eg. "why would you bother to use af-s or af-c when you have af-a??" (I know that probably sounds like a silly question to the more experienced on here), and I get some good tutorials. But just wondered if anyone could suggest a good book that would give nice clear explanations, I really want to know my camera inside out. I thought of getting the 'For dummies' one. Does anyone have experience of this book?