The book starts off so well with great written instructions and clear diagrams. However, the author too quickly abandons the beginner by shortening the written directions and cutting out parts of the diagrams which we've supposedly already learned. Also, he states in the beginning that the shaded sides of the diagram will indicate which side of the paper you're looking at (most paper is white on one side and colored on the other) but only in the first diagram and in a few other advanced ones does he do this. Plus, I believe that he starts a few off wrongly by telling the wrong side of the paper to start with.
On the good side, the structures quickly build off of the folds of the previous one so you can master various folds and apply them to the next. The beginner form, the mouse, is really cute. Not a bad book on origami but I believe I'll need to add another book to my collection in order to get further along.