I think you don't see much about this because this is one of those areas that you can't really teach. Sadly, this is where natural coordination comes in.
The one thing I can tell you to HELP develop good timing is this: become as aware as possible of the exact moment of contact between the tip and the cue ball. It helps very much to go practice in a quiet room, so that you can clearly hear the sound of your tip hitting the ball. Start out practicing lots of center ball hits. This creates the most noise usually. It also creates the clearest feeling of contact.
For a lot of people, they think of the pool stroke as one thing, one instant. It sure isn't. Try and develop an awareness of the time it takes for the tip to go from pulled all the way back, to striking the cue ball. Pretend in your mind that that time is very long. I'm not saying hit very soft, I'm just saying to picture that there is a long time happening there. Here is a great example. You ever play with a stop watch and try to get the lowest time you could? I did this all the time as a kid. Trying to stop the watch right on like .05 seconds was very challenging. But trying to stop it right on 1.00 seconds was much easier. This is because compared to 0.05 seconds, 1 second seems like a long time, and I have plenty of time to build up to it and be ready for it. 0.05 seconds seems instantaneous, and it becomes more of a reflex, very jerky reaction to try and stop it there.
I really like trying to build the image in my head that once I pull the cue all the way back, I slowly build up to the exact speed I need on the long trip to the cue ball. I am not necessarily advocating shooting this way all the time, just practicing it to develop the feeling. I think it can help build an awareness of the exact moment of contact. Having the tip moving at the speed you want at contact is the ultimate goal. This is the key to any powerful stoke, fast break, etc. Some can do this without thinking. Some can't. I had to think about it and *learn* the awareness.
I know this is a bit vague, but it is the nature of the subject.
I hope this helps,
KMRUNOUT