pocket door kit which is the fancy term for all the odds and ends you need to make it work. Then you purchase a standard door. Obviously one without hinges or a door handle whole. Pretty cool!
Lowes Pocket Door Kit: http://www.lowes.com/pd_109872-1277-PDFC150-00-68_0__?productId=3166865&Ntt=pocket+
I think this looks like it may have a shoji screen aesthetic. Perhaps try here:
pocket doors for office translucent panels
The doors and the fireplace are ideal and practical
floor to ceiling pocket door for den
Doors for transition from master bed to on suite
pocket doors are better than regular doors
Fire place!! Windows! Good space for books
pocket doors. When shut, these semitransparent doors give someone enough privacy to work in peace while still letting in ample light; when open, they disappear, creating the feeling of one big room.