This is slightly tangential to paper airplane folding, but I strongly recommend Duncan Birmingham's YouTube channel ("The Pop-up Channel"): https://www.youtube.

This is slightly tangential to paper airplane folding, but I strongly recommend Duncan Birmingham's YouTube channel ("The Pop-up Channel"): https://www.youtube.com/channel/UCx2M2bGHtXBszG6tuR_NIbQ https://www.youtube.com/channel/UCx2M2bGHtXBszG6tuR_NIbQ Pop-up books are works of art, but they rely on a vocabulary of a few dozen mechanisms, each of which operates in relation to an opening fold between two pieces of paper or card. Birmingham is a great, systematic expositor of the analytical prerequisites for the wildly creative stuff you might come across in a bookshop these days (there's a boom in spectacular pop-up books, see http://www.bestpopupbooks.com/ http://www.bestpopupbooks.com/) I should add: pop-up books are still assembled by hand (in the Far East), not by robot; so if they seem inexpensive, there's a bit of a story there which might not flatter the book trade. A microcosm of globalization.