I found this tutorial to be well written and very useful. It is in two formats. In one format you hear the author discussing the subject while you are viewing slides that graphically illustrate each point. In addition, all of the material, including the figures and descriptive text are in a PDF file that you can print and use for reference or review at a later date. A really nice feature is the powerful search capability within Adobe Acrobat which makes it possible to instantly search the entire tutorial for specific topics and keywords and then play the multimedia clips directly from within Acrobat reader. I have previously had just enough exposure to Foundation Fieldbus to be able to recognize that the author is, without question, an expert on the subject. Now, with this tutorial under my belt, I feel prepared to build a Foundation Fieldbus segment and start getting hands-on experience.