CEDIA is a nonprofit trade organization setup to provide certifcations and training for Systems Integrators and Installers. They offer boot camps to provide you training, but they aren't free, and more expensive for "non-members". CEDIA claims that you should already be working in the industry for about a 1 year prior to considering taking the level 1 exam, and is essentially setup to allow employers to send ther employees through this training. The problem is if you are new to audio/ video/ construction/ structured wiring/ audio pronciples/ basic electronics principles/ its going to be a little difficult to find all that information from one source, not to mention getting hired by an employer to send you there at their expense.
That being said, CEDIA does have a list of recommended reading which might help you on their website. That is where I would start. I'd recommend taking a thorough look at their website to get a clear idea of what they are all about.
www.cedia.net
