Adobe Lightroom CC/6 – The Missing FAQ is primarily designed as a conversational FAQ-style reference book, giving you the detailed information you need to make informed choices, whether you’ve been using Lightroom for a few months or a few years. No more pressing buttons without understanding the repercussions!

Unlike most other Lightroom books, this isn’t just the theory of how Lightroom’s supposed to work, but also the workarounds and solutions for the times when it doesn’t behave the way you’d expect.

Source: Adobe Lightroom CC 6 – The Missing FAQ