This is an excellent collection of origami diagrams. Modular origami diagrams, to be specific, which are folded from multiple sheets of paper as opposed to just one, and tend to be much more systematic and repetitive than 'traditional' origami. Repetition is not inherently boring or tedious; in the case of modular origami, I find repetition to be nearly therapeutic. This book is clear, vibrant, well organized, and contains instructions for many beautiful models. The chapters are arranged by unit, then by model. The instructions for each individual unit come first, and following that are at least several models that can be created using varying numbers of that single unit. For instance, one of my favorite units can be used to create a few different sized models, from 30 units up to 128 units (which takes time, but is certainly worth the effort). Overall, this was a great book that I’d recommend to any origami enthusiast. I bought it probably eight (or maybe even more) years ago, and I still fold its models from time to time.
-Kelsey Joy