For what it's worth, if you are actually interested in fast tracking your knowledge of Wireless fundamentals then the CWNA certification program and its associated references are really great. I recommend this book
https://www.amazon.com/CWNA-Certified-Wireless-Administrator-Official/dp/1118893700/ref=sr_1_1?ie=UTF8&qid=1481070486&sr=8-1&keywords=cwna
https://www.amazon.com/CWNA-Certified-Wireless-Administrator-Official/dp/1118893700