You're not going to find any 1,2,3.. steps in mastering. Mastering is the most misunderstood process in the evolution of artist's material to the finished sellable product. Mastering does three main things generally: adds consistency from one song to the next song on the record, adds clarity and dare I say "punch", and in modern music, boosts perceived volume. Multiband Dynamics allow you to tame certain specific frequency ranges with compression allowing you to pull down or move a specific instrument or tonal balance more upfront in the mix. EQ alone won't add consistent level to the bottom end if the bass player had inadequate technique. But remember, just because you have the toys doesn't mean you should use them on every song. The least processing you can do to accomplish what needs to be done is the best aproach. Good luck!