This is probably the best unit origami book I've ever seen. Anyone who's done a little origami should find that they can build at least some of the included models. Diagrams are generally good and easy to follow for the most part. Construction of the individual units is fairly easy, although some do have rather a lot of steps and some folds can be tricky. The one thing you will need for this book is patience - to make one the big impressive models you'll need to put together upwards of 60 units, and all of those will need to be well folded if you want a clean result. Putting the individual units together to build the final model can be challenging. I've often spent much longer building a model than it took to fold the individual units. That said, this is a good book that will delight intermediate folders. Beginners will enjoy it too, but be advised that patience is required.

Fab book with some full colour pictures and lots of easy to follow instructions. However, I wouldn't recommend this to the beginner because some folds and models are challenging. Nevertheless, this book provided me with loads of excellent ideas for making and designing my own models.

This was even beter than I expected. Perfect in every way, simple to follow instructions(b&w), tons of models. If you want to build stuff like spheres, etc, then this is the book for you.