Instruct: Classify the given review as either positive or negative.
Query: Exceptional Book on Process Improvement - Even for Dummies

Bought this book to get a glance to topic "process improvement" and to gain understanding in process improvement practices. Reading the book really impressed me, especially the way how the author manages to explain everything from the beginning. Considering myself as inexperienced in mathematics and in process improvement, this book really bursted my understanding of managing process variation!Understanding Variation is a well-written book and easy to understand. I recommend it to everyone interested in process improvement!