Drop, in the case of window treatments, the drop is the vertical distance from the top of the rod pocket to the bottom edge of the window treatment.
Dupioni (also Douppioni or Dupion) is a woven silk fabric with a textured finish from the crossing of the smoother warp threads with coarser weft threads.
Damask is a Jacquard woven fabric with one warp thread and one weft yarn. The pattern is typically worked in a single color with the shiny fibers, or satin weave, creating the face of the pattern, ...