Since a lot of people seem to be getting asked question about Jeppesen IFR plates/charts, I'd recommend this website.
Jeppesen Chart Clinic
On it, he's posted all articles of the Jeppesen Chart Clinic. It's excellent reading material. This does not just explain the legend like the basic Jepp guide but goes into detail about different aspects of the plates, why certain things are represented on it, why is terrain shaded in different colors etc, just to name a few examples. It's a good refresher for Jeppesen related stuff.
All the best to you guys/girls attending the interview
