BizTalk Server books are in short supply. And finding one that really helps solve real world problems is event harder to find.
A new BizTalk book is now available. It's called BizTalk 2006 Recipes and is currently available on Amazon.com for around $38.
I was fortunate enough to get to work with the authors of this book as a Tech Reviewer. This book covers BizTalk from end to end and is a must have for any BizTalk project!