Law School Discussion

I believe it depends on your professor.  The best advice I got was from a TA with academic support.  He said to go visit with your professor in his/her office and look around at the books on the shelf.  Sometimes you can find study aids on their shelves that they use, other times you can find out what authors they look at the most and see if those authors wrote a study aid for the class.

If that doesn't work, look for one's either written by your textbook's author, or is keyed to the textbook you are using.  Although Gilbert's and Glannon seem to be the ones my professors have recommended if you are going to use one.