Over the years I’ve amassed a huge amount of AD related information. Most of it at the moment I’m working through is about creating a Forest/Domains, OU structure, logical/Geographical models and I think if you need to do that… You probably know how to or where to get the information to do it! All the MS stuff is easily accessible so it’s a bit pointless me posting everything I’ve ever read on it.
One thing that is of use and that bypasses the need to actually…Pay for things is a very old school way of making pretty pictures from AD. It doesn’t work on server 2012, so it will need playing with, but it saves a ton of time working through text documents, AD users and computers, then Visio: