This week's topic, User Assistance, is one of the "Selected Topics".
There is the file "10-User-Assistance.ppt", and a symbolic link
"10-Selected-Topics.ppt" to it. You may see both listed as regular
files, but they will get you the same set of slides.

The files for this topic contain a lot of screen shots, which makes
especially the PostScript file very large (>  5MByte); the PowerPoint
file with 360 KByte isn't too bad.

FJK