Queen rearing is challenging, fun and difficult. A beginner might get very frustrated because you need a grasp of basic bee behavior to start with. Queen rearing is pushing the envelope of controling bee behavior a bit further.
If you DO decide to try it, just don't get frustrated when things don't go as you expect. Stop and analyze what the bees are doing (or more likely, NOT doing) and reread the books looking for why.
It's easy to think you can just put some larvae in queen cups in with some queenless bees and they will raise some queens. Basically, yes, they will raise one or two. To get them to raise 20 or 30 is a lot more difficult. It requires larvae of exaclty the right age, lots of bees to care for the cells, lots of pollen and feed to feed the cells, exact timing for all of the things you need to do, and some careful manipulations to achieve all of this.