This book is by Paul Jackson. The diagrams are very good...the one bad thing is that they only show one color of the paper (no contrast between front and back). That said, for origami, this book has a fantastic collection of models, ranging from simple to high-intermediate. All of the models in Jackson's book "Festive Folding" appear in this book, as well as a number of other really good ones. This book is worth having for just the excellent origami section.