It is a valuable and worthwhile addition. Coverage of the topic is very broad-ranging, although it is not, perhaps, complete. Rose has a professional grasp of humour, and it is used extensively and effectively throughout. The book is not without problems. He mentions the frequent administrative mis-posts on mailing lists, but not how to avoid doing them.
Some specific recommendations are questionable.
I definitely recommend this work for all Internet users, and particularly newcomers. I very much hope future editions will extend a work well begun. Rob Slade's book reviews are a regular feature in the Digest.