Not adapted to my needs

Indeed, if the form is not the best for good readability, I knew that the pictures were small (in fact they are microscopic), I was disappointed by the content and progression.
The used method of all cutting steps (probably adapted to that decided to swallow the book from A to Z next to his computer) including the following drawbacks:
It is very slow (read a lot to learn some) style being somewhat diluted
She repeats the obvious (open the file type, click to ....)
she drowns in the text shortcuts (Mac + PC) which makes it more than painful and unproductive reading if you have not the keyboard at hand (unless hyperménisque to store them at the first reading. Their recall next to the text had been preferred as easy to find

I already knew a bit Lightroom and hoped to find information for arriving at an understanding of:
- Architecture and functions
- The structure and operating principles of the tool (between the various BDD / photo books, metadata, etc ...)
In particular in the field of metadata I have liked to know what was happening in the beast when importing pictures already tagged (it has not necessarily started with the tag LR) where LR recognize developments on photos already imported and proposed updates to deltas, etc ..
Anyway in the end, I'm on my hunger (!!) even though I confirmed some knowledge.
For me this book best for the brave beginner who learns linearly as the amateur that wants a dim supplement his knowledge rapidly.