I finally think I understand this Marc stuff. I just took a quiz that I feel pretty good about, but I have a habit if making careless errors under the pressure of the timer ticking away at me. I am enjoying DDC (Dewey Decimal). I like having a book that I can just look at and figure out the answers. I have done really well on my 2 practice assignments and I will hopefully do well on the graded one. I just keep plugging along and hope for the best.