Try to read as much as you can between now and then. I had actually read the Designer's Manual, cover to cover, more than once before I took my
PDC and got a lot more out of it than if I hadn't.
When you are at the course site, try to immerse yourself in the experience as much as you can. Try not to be immediately referencing everything you learn back to your home place.....there will be time
enough for that later.....
