What is Reddit's opinion of Cisco Lan Switching Fundamentals?

From 3.5 billion Reddit comments

How big (or small) it's the installed base of the switches described in https://www.amazon.com/Cisco-Switching-Fundamentals-David-Barnes/dp/1587050897/ref=sr_1_1?ie=UTF8&qid=1516985129&sr=8-1&keywords=Cisco+Switching+fundamentals in today's networks.

I'm also reading Cisco Switching Fundamentals https://www.amazon.com/Cisco-Switching-Fundamentals-David-Barnes/dp/1587050897/ref=sr_1_1?ie=UTF8&qid=1516985129&sr=8-1&keywords=Cisco+Switching+fundamentals

An wow, it's an eye opener for how the switching architectures work and are designed, I'm enjoying the reading so far, and combined with the Cisco LAN Switching (CCIE Series) is being really interesting, there is some overlapping of course but I found on the first one the section about negotiation is really good, and from there I went to read about the IFG on Ethernet, and that lead me into the clocking needed for synchronization, so far I love it.