I picked up "Mixing Secrets for the Small Studio", by Mike Senior. He presents a process for mixing, which is excellent. He does not follow it step by step all the time, and says that most professionals tend to move around, too. But it's a great starting point, and he really makes you think about the steps, the order in which you should do things. Small stuff, like, there is not point in slapping a whole bunch of effects/eq/reverb on your guitar when you haven't recorded the vocal yet.
Definitely worthwhile if you're trying to build consistency.
https://www.amazon.com/Mixing-Secret...e+small+studio