Does each unit have a procedural manual

I just finished my first week of hospital clinicals and I'm just trying to get an idea of how things work. I spent most of the time asking a million questions trying to figure everything out and I know that's part of learning, but I just wondered if there was an easier way for me to learn without taking up all of the RN's time. Does each unit in a hospital have a manual that explains how things are handled, policies and procedures about different things, etc? In my textbooks a lot of things say something like "learn your facility's policy about..."

If these do exist what are they called and where would I look for it?

Thanks.