hi
the legend manual is pretty much part of every Jepp subscription. If you are instrument rated or hold an ATP and haven't seen this, I would be quite concerned.
to obtain this , you must PAY $ to JEPP and subscribe or at least purchase the legend.
I know that if I were interviewing someone for a flying job, I would pull up an unusual Jepp chart and quiz you on everything on the chart. Things like visual flight path symbols, visual descent point (vdp) would be very fair game.
I would also ask you what, "ceiling required" meant. Here in the USA we don't use that phrase, but it is still popular out in the other parts of the world.
it shouldn't be hard to look up the jeppesen company and contact them to purchase not only the legend, but a course in how to read Jepp charts.
believe me, if you don't know your jepps, you aren't my kind of pilot.
happy landings
jon