Without a doubt one of the worst computer books I have ever bought. The intent of buying a book about programming is to actually learn programming. I have fought the XML section until I have a screaming headache with very little accomplished. So far I have found it impossible to get the so-called examples to run. The source code is not available from the publisher in spite of what others may tell you. Yes, there is a file to be downloaded. However, it has almost none of the source code in it. For example, it only contains the source code for one .jsp file for the entire 2nd chapter. The writing style is practically incomprehensible, jumping around all over the place without ever finishing anything. There are nine authors listed on the cover. Perhaps that is why this book is such a clusterf#@k. How did this thing get to a 2nd printing? STAY AWAY FROM THIS BOOK. I cannot stress that enough.

The problem with Learning Web Services is just one - there is too much happening..the technology has grappled everyone's attention and a lot of Organizations are on it..
A beginner to web services just doesn't know where to look..strong foundations give 'empire estates', this book does just that
The primer on XML was one of the best i ever read anywhere and i am a big fan of Dr.Google, the clarity of the authors on WSDL Element model is very informative. All in all - if you need a book to trace Web Service concepts and build your foundations - i would strongly refer this book.

If you are looking for a quick reference/book to get started in implementation you should look elsewhere..Sam's 'Teach Yourself Web Services in 24 Hours' is a good choice..but then i believe that this book is definitely worth a reference because it goes a distance conceptually.
Kudos to the authors

This book has helped me immensely in implementing some really intense production quality data interchange across systems using web services.

This book will quickly help you understand the entire XML stack of technologies that you will need for Web Services.

The authors have uniquely enabled the readers to develop an understanding of the underlying technologies that make up the web services. Certainly expect to put in some effort in understanding the content.

The writers either do not understand the topics, or they want to confuse the readers intentionally. You will find their writing style extremly annoying. They use the Skatestown(??) example to mislead the readers whenever they need to explain something. I dont know how such a bad written book can make it out to the book stores. If you buy this book, it will be the biggest waste of money.

I am still wondering why the authors don't provide all the code, since the book describes an application and that should have been tested and the code is there. Just a few wsdl files don't help very much.