I already had the 1.edition of this book and found it ok, but lacking more examples.
When I got to know about the second edition and it's addition of diagrams and pictures I thought I just had to buy it.
A long review made short: Great!
The 2.edition has excellent diagrams which together with the text explains where the water is most likely to hold fish, or most probably not.
Both editions are well structured and has focus on reading the water. It does this really well and does not mix in too much about other topics, though it has some chapters on e.g. casting and river entomology. I find these to be just perfect with references to books on those topics as well.
Reading the water could be a mystery, but the book classifies water(river, stream, creek) and lies(primary, holding...), and also types of water like runs, riffles, pools etc...
For each of these the book explains where the water is most likely to hold fish and why.
The book also quite well explains how to classify they water yourself and from there it becomes more easy to understand how to approach e.g. a riffle.
Explaining why e.g. size of insects differ from riffle to runs are interesting. Also the text on why it is probably good feeding lies after a non holding shallow riffle(since insects get washed down into the run/pool).
All in all I do really recommend it.