In my case I always thought there was something rather brain-damaged about the addressing schemes in token ring, but I was young and in my first graduate job and I just assumed it was more to do with me. It wasn't until I read this book that I could actually feel vindicated ("YES! - I just KNEW functional addresses on 802.5 were bogus" is how it actually felt).
The book is hard going for me, and I have definitely not taken in all the detail, but it has given me a much broader understanding of networking as a whole. It's also convinced me that whilst TCP/IP is not necessarily the best solution, I probably don't have a big enough brain to take in competing technologies such as OSI protocols or ATM.
If the above has snagged your interest, I suggest you peruse the more detailed (and vastly superior) review by He Zhu (Bell Labs) here and then go and get yourself a copy!
So what's this got to do with a bridge? Well you'll easily spot the book in the networking section because it has a pretty suspension bridge on the front. It's the Tacoma Narrows Bridge, but it's a recent picture and it's NOT FALLING DOWN! Guess it must be the second edition. Actually, in addition to there being a modest visual pun, I'm sure the cover was chosen in part because the author has taken the time to cover protocols that failed but who contributed useful ideas that live on - one of the most valuable and unusual aspects of the book.