I've worked mostly with film in the past but recently i've gotten more serious about digital black and white and have been trying to teach myself photoshop. I have CS3 currently and am looking for some good literature to help me use photoshop more to my advantage, specifically for b&w photos. I have a couple of books from "Lark Books" on digital b&w but if anyone knows of any good books on CS3 or just on b&w digital in general I'd love to hear about them. My use of photoshop at this point is fairly basic, and I mostly have been just using the channel mixer to convert my color photos to b&w. I haven't done much at all with layers, which is probably where my skills are most lacking, so i would really appreciate any suggestions. Thanks!