Practice with FDs and normal form

To understand FDs and normal form, there is no better way than practicing with it. The books have a number of interesting exercises and I would suggest you to try at least the following:

6.1 - 6.4, 6.6 - 6.8, 6.20 - 6.23

In all the questions, skip the part about 3NF since we have not learned it yet and work with BCNF.