One that I am finishing right now is "The Quintessential PIC Microcontroller" by Sid Katzen. I have the 2nd edition, published late last year - this is a very thorough book that explained a lot of details that I'd had heard of (some thru this list) but really didn't have a full understanding of. It should be available thru Amazon.com. -- http://www.piclist.com#nomail Going offline? Don't AutoReply us! email listserv@mitvma.mit.edu with SET PICList DIGEST in the body