Instruct: Classify a given review as either positive or negative.
Query: Confusing

This book can't decide if it is a tutorial or a reference book. It starts out as a tutorial, but segues right into an endless recitation of ShapeSheet cells from A to Z. Add to this typos, made-up adjectives (like "united" as opposed to "unit-less"), examples that don't work and a poor index and the result is a confusing book indeed. I got a LOT more from the free "Developing Visio Solutions" book.