Seth Godin just wrote a blog post called the Hierarchy of Presentations ... for me it struck a chord. I like the plain language he uses so I tuned it into a slideshow presentation to help spread Seth's message. Geoff Brown.
Seth's blog post is here - http://sethgodin.typepad.com/seths_blog/2009/04/the-hierarchy-of-presentations.html
The cartoon on the front cover is by Hugh McLeod at Gaping Void here - http://www.gapingvoid.com/Moveable_Type/archives/003621.html