Camera Raw with Adobe Photoshop CS
I write to thoroughly recommend Bruce Frasers' book as the title.
It is a thorough and clearly written guide to using the PS RAW Convertor full of tricks and tips for improved workflow.
I don't usually bother with these manuals prefering to "learn by doing" which means trial and error, with most of the emphasisi being on error, but in the few days since I started with the book in hand my productive time has shot up. I got my copy via good old Amazon in 7 days from the USA to Scotland, and at a good discount from the cover price too.
Regards
Jim A