An HGA Learning Exchange article written by Rosalie Neilson about color and warp faced rep. Complex designs in warp faced rep can be woven with just two blocks threaded on four shafts - just add color.
"Just Add Color For Complex Designs - Warp-Face Rep: 2 Blocks on 4 Shafts." Shuttle, Spindle & Dyepot. #113 - Winter 1997/98. pp.49-52.