I did a quick talk at the mid south star gaze. It is fairly general but also adaptable. If someone needs something like this to work from, it won't bother us if you use it. If someone wants it, send me a PM with your email address. The PPT 2007 file is about 1M/15 slides (or so) with 5 samples.
Hope the authors don't mind, because I bragged about the sketching forum and the astronomical sketching book.
Blog: www.rolandlinda3.wordpress.com Older sketches in Members Galleries (rolandlinda3)
For other sketches/inspirational stories: contact me via PM for information