Yes, CK, I do so appreciate the old-school method of being proficient with the best foundation---the books! However, in this modern day where coding and billing are so vastly inter-related, it's crucial to have the high-tech skills to navigatet the red-tape and beaurocracy of the LCD's, NCD's, CCI edits, and other helpful information to do the job even more efficiently. Going back to the original poster's question and my followup, it just depends on what is needed!