We promised to take it easy and we hope you weren't disappointed, even if you did find some of this difficult. When we started our goal was to teach you things about nmake. We'll be happy if you leave with a good understanding of assertions and variables, and the ability to experiment - if you do you'll have the tools you need to make good use of the manual.
We want feedback, so send your comments to email@example.com. There's plenty left, so if there's enough interest we'll gladly tackle a more advanced paper.