ROBERT J. LAng
Robert J. Lang is an American physicist. He born the May 4, 1961 in Dayton, Ohio. He is know by he's complex designs in origami. Mostly animals or insects, but also humans, creatures, etc. He has study the mathematical part of the origami. He create a mathematical software for create diagrams. It's named TreeMaker, an GPL (open source) program. Tree maker create CP's by using a technic of circles. The technic is that you need to put circles in a square. It's really complex. To know more about TreeMaker click here. If you want the site of Robert J. Lang, click here
John montroll
John Montroll is an origami artist that travel around the world creating origami. He is know because he have create a lot of books. Now, all the "second version" for the majority of he's books are avaible. Here is the site of John Montroll where you can buy books and find some basics diagrams.
Akira yoshizawa
Akira Yoshizawa was a Japanese origamist, considered the father of origami. He born the 14 March 1911 and die the 14 March 2005, so in his 94th birthday. He are special because he created around 50 000 models of origami, wich just some hundred has been presented in diagrams, just in 18 books.