The Origami Forum

I understand that there are new chapters, chapters 14 and 15, and some new models.

I have some questions -

Is the first chapter on box pleating pretty much the same?
What is new about chapter 14, uniaxial box pleating?
Polygon packing in chapter 15 is not pure box pleating, correct?
What new terms are introduced in these two new chapters?

You can find some general information on this forum , just type in the search box- origami design secrets 2 .
I would highly recommend buying the book from Origami USA, Passion Origami, or even Amazon .
Utilizing the book as a reference, over time, will undoubtedly answer most, if not all, of your somewhat specific questions.
The book is a must have, if you're even a little interested in advancing your study of origami .
And yes, it is better than the first book, Robert Lang put a good deal of thought into improving on his classic.