This book is by far the best book to MS BizTalk I been allowed to hold in hands. The author describes the basic activities (still with virtually no code commented) enough and goes (thankfully) very in-depth and on the code level. The only negative thing about this book is in my opinion the all samples are available only in VB.Net and BizTalk but the default language C #. Only for this reason there was to me a star deduction, although everyone should buy for BizTalk interested this book. Just great!