There is no bible or single source of knowledge that will help you accomplish what you wish to know. A professional has one thing that no one else does...experience. If you are serious about your business endeavor, you should hire a professional to help you. Security is one of the most important aspects of any business for a multitude of reasons and you will not be able to put together a proper system for 10 years.
CCTV systems are EVERYWHERE, in almost every building/business you walk into in America. Every place I go I always look for cameras and I judge a system. I find that only 1/10 systems are designed and installed correctly. Even in places like airports, coffee shops, restaurants, banks, etc. I travel a lot, as in well over 100 flights a year, I have been in all of the major airports in the country and many international and it is scary to see that many of them have poorly designed systems that are oftentimes not functional or not maintained.
My father started a CCTV and security integration company over 30 years ago, and I grew up in the business. I have been designing, installing, and troubleshooting CCTV systems since I was 3. I have over 23 years of hands on experience and I am telling you right now, you should get a real pro to help you. The most common problem I see in ANY cctv system is when the owner/security director decides to try to do it themselves, or hires someone cheap and ends up with a system that does not work, and does not function. Often these systems do not ever end up functioning and are forgotten and money is lost, not only on the system itself, but in other ways that the system was designed to either prevent loss, or protect assets/property.
CCTV looks easy, but you have to remember that there are many factors that are not observable.