Comprehensive and detailed book about all aspects of chicken healthcare. This book includes nutrition, common and not so common diseases, and methods for diagnosis, it also covers heat and cold stress, caring for young chickens, and what chicken diseases are transferrable to humans. This book is a must have on your shelf if you are very interested in having a reference non - Internet health manual written by a well respected chicken expert -- Damerow produces the Storey's Guide to Raising Chickens. Having said this I found (at least) one contradiction in the book that prevents me giving it a 5 -- in one section parsley is listed as an herb good for chickens, and in another section the leaves are listed as being toxic for chickens. Also, you need to read all the sections covering using vinegar in your chickens' water- in some cases it is very helpful and preventative but during heat stress, vinegar probably should not be used. So, be sure to read the section When Not To Use Vinegar. This book is superior to many articles on the web, as they tend to gloss over the full perspective of topics ( I compared various Internet articles to topics in this book) using antibiotics, Diatomaceous Earth, Vinegar, etc. -- This book shows both sides of most the issues. And essential reference manual on your shelf!