The class="textlinks">text is informative, the code examples are illustrative and not excessively verbose, the book is well indexed and easy to flip through to find answers, and in my experience so far it has been completely accurate.
I've spent about 200 hours this spring hacking AWT code with this book at my side, and it has been an invaluable aid. I highly recommend it.
They are my favorite Java reference books and highly recommend them to any serious Java programmer. Out of all my Java books, these are the ones that I find the most useful.