I enjoyed it very much. In fact, I was thinking about doing a writeup on it. It goes through the basics like protocol overviews and how they look in Wireshark. And there are several real-world examples of how it can be used to solve networking issues. It's also a quick read being only 192 pages.

The guy who wrote it runs this site with tutorials and other good stuff:
http://www.chrissanders.org

I haven't read Jay Beale's "Wireshark & Ethereal Network Protocol Analyzer Toolkit," but knowing Jay and looking at it's size, it will get much more in depth. It was also published in 2006, but not much has changed with basic protocol analysis in 2 years.

Hope this helps,
Don

Great suggestion, Chuck.

Don

Thanks for all the suggestions.  I would love to get the Master Library  but that is a little out of my price range right now.  I probably break down and get the "Practical Packet Analysis" book and just keep dreaming about Laura's collection.