I just finished the reading of Don Fiehmann Book ,The DCC GUIDE, and personally thinks that is a good book to read and show to the friends that are not convinced to join the DCC bandwagon
Guess is a must have…
Lots of explanations, basic and no so, equipment selection and other stuff…
I also enjoyed Lionel Strang’s DCC Made Easy (Kalmbach Publishing). Tony’s Train Exchange has a good primer on their web site called DCC For Beginners, which is also very informative. You can either read it online or download it onto your computer as a .pdf file.
I second Tom’s suggestion on Tony’s Trains site. Dec 2005 issue of MR had a decnet article on DCC for beginners. And, check out Allan Gartner’s Wiring for DCC web site.