This newly published book belongs close at hand for every engineer in advanced wireless. Marzetta invented it at Bell Labs, so I expected a fine book. Marzetta and co-authors Larsson, Yang, and Ngo did an extraordinary job. The book is admirably clear, short, and definitive. They answer the key questions: what it is, why it works, and how to design the systems. The last chapter reviews the problems still to be solved. It's only 160 pages (and 50 more in appendices) but all the main topics are addressed. For depth on a particular topic, the authors point you to the original research. The book is written for engineers; some parts are hard going for a layman.
The Resources list at the end references the seminal works by Paulraj, Foschini, Alamouti, Goldsmith, and the authors, as well as the 150 other works that have defined the field.
It is a virtual history of MIMO from its invention by Paulraj in 1994 to the present. I have the abstracts for several of the articles and will post more.
Massive MIMO and millimeter wave are the primary technologies for 5G wireless. Millimeter wave has short reach in cities but brings enormous capacity. Massive MIMO has broader coverage and works with standard mobile phones. Neither is best everywhere so both will play essential roles.
Ted Rappaport's book on mmWave is a natural complement. [[ASIN:0132172283 Millimeter Wave Wireless Communications]]