Any book by Masahiro Chatani is a treasure for one who is interested in origamic architecture and beautiful paper.
Many of this "master's" patterns are far too complicated for beginners, but this little book is easy to use and has beautiful patterns for pop-up cards. It can be used by adults who have basic cutting and folding skills along with a bit of patience. I have made many of the cards in the book and my friends love receiving them. I even love looking at the photographs of his work. Really stunning.
From wikipedia.com:
"Masahiro Chatani was a Japanese architect (certified, first class) and professor considered to be the creator of origamic architecture.[5] From its development until his death in 2008, he was widely acknowledged to be the world's foremost origamic architect."