SBs and ADs and ICAs, Oh My!

This is Part 2 of a 3-part series on maintenance issues for the Southern California Pilots Association, in which I discuss the differences between Service Bulletins, Airworthiness Directives and Instructions for Continued Airworthiness documents. Plus a couple others.
Note that I am not a Mechanic! Just an airplane owner. But, I am involved in the upkeep of my airplane, and part of that is a passing familiarity with these types of documents, the process the manufacturers and the FAA uses to develop them, and what they mean to me as a pilot and aircraft owner.
If you work on your airplane, make sure you develop a working relationship with the maintenance personnel you use, and a knowledge of all the documents and regulations that guide that work. Make sure you always use only approved materials and documents to complete that work.