How... How Was This Done?

As the title suggests, this really baffles me.  Upon clicking the link you will find art made from single pieces of paper, while this sounds simple, I can only wish I could do this type of art on a computer.  It is not explained how the user does it, but I feel it is a very minimalist approach to creating art.  By that, I mean they use as little material as possible (a pretty impressive accomplishment for creating such an awesome piece with a single sheet of paper).  Rather than having to buy ink, paint, pencils, marble, canvases, ect., this artist simply has to walk in a store, buy a stack of paper, and get to work.  I especially enjoy the fact that some of the figures are still connected to the paper, giving the feel that the paper is coming to life on its own, trying to break free into the world.  Out of all the pictured works, my favorite one is the skeleton trying to break free, especially because on paper they still have very alive legs drawn onto the paper, while it is the skeleton that is actually coming to life.  Ironic?  Yes very much so, but as I have said in previous posts it is the peculiar works of art that really draw me in and get me engaged.  While some art does involve logic, I am most intrigued by that which has conflicting messages or little logic at all.