I began reading Vincent Versace's From Oz to Kansas a couple days ago and it's so good that I'm having a very difficult time putting it down. Despite that I have been emphasizing black-and-white photography for over a year and feel very comfortable with it, I'm finding stuff in this book that is both new and exciting to me that also applies to color photography. Lots of stuff!
Buying the book provides free access to some Nik Color Efex plugins and image files discussed in the book (though I bought mine used and won't be surprised to learn that I won't be able to access them). You can follow along step-by-step using CS6, though the concepts are not limited to that version or even that software. The freebies include actions of every conversion explained in the book and a PDF explaining the author's workflow.
However, the really important part of the book for me is the conceptual stuff ranging from philosophy to details of how and why RGB is almost always central to black-and-white digital photography, and to the details of post-processing that finalize the making of the image. Despite that I have been reading the book without the computer at hand and have never used CS, I have enough post-processing experience that I'm having no troubles whatsoever grasping everything. Those with little post-processing experience will benefit from following each step at the computer.
I am far enough into the book that I can't recommend it highly enough to both the newbie and experienced monochrome photographer. The book is so good that I have already placed its prequel, Welcome to Oz 2.0, on my Amazon wish list even though it is definitely not limited to black-and-white photography and may not even discuss it.
I considered waiting until I have finished the book before writing this post and decided not to for two reasons: I learned so much from reading the first three chapters (actually, I learned a lot just from the Preface) that even if I don't learn anything from the remaining five chapters and two other sections, which is highly doubtful, I will put the book down feeling very satisfied. There may be someone out there in the CiC community who could get as excited about this book as I am that should not have to wait for me to finish the book to learn about it.