I absolutely ADORE Yoko Saito. I wish the American quilting magazines - and American quilting industry in general - would expand their horizons and feature more Japanese quilters such as Yoko Saito. There is a huge "genre" of similar quilters in Japan who create this type of exquisite work.
The majority of the books Yoko has written are only available in Japanese or French, but the illustrations are of such excellent quality, it's not difficult to figure out how to make her quilts and other projects.