I have only recently got my 7D2 but I am finding it fairly easy to set up. It does take some time and, more importantly use, to get your camera just right for you.
So far I have only once tried my 7D2 in flying subjects, Short Eared Owls, and the AF missed on about 10-12 shots out of around 200 so we are nearly there!
As to books, manuals etc I have only one recommendation - don't use them! I did try the manual back when I had my Canon 350D and it completely did my head in. Just get out and shoot, play with a setting or two, and shoot again - much quicker and easier in my opinion!
For reference I am using AF case 5 with back button focus (AF-On button), Servo focus for everything, manual mode with Auto ISO and exposure compensation activated by the SET button. It's all in the camera menu and quite easy to set up.
Life is for living, cameras are to capture it (one day I will learn how!).