Instruct: Classify a review as either positive or negative.
Query: Excellent exposition of the subject of workflow automation.

This book is almost first of its kind to clearly and conscisely explain the notion of workflow automation. The way the authors deal with the categorization of workflow is excellent. This book is a MUST for both practioners as well as academic researchers. This can be used for building workflow automation systems as well as teaching a graduate course. The authors did an excellent service to the research/practioner community. As a professor in industrial and manufacturing engineering and computer science, I find this book extremely useful for both theoretical and applied research.