I have read the free version and it is well written. However I do think that we need another book that extensively speak about modern tech stack data modelling, something similar to Kimball but targeting modern industries such as mobile gaming, large-scale e-commerce, video streaming and etc.

From my years of exp I feel that Kimball is not exactly the best solution for those techs. They typically involve very large amount of data, fast iteration (of anything, including data warehousing), columnar database and real-time streaming requirement.