You are probably wondering "what is a gamp?" I didn't know either until I began weaving.
"A color gamp is a cloth that contains a set of color stripes in the warp that are crossed by the same set of color stripes in the weft. The resulting fabric will show the interactions of all the colors with every other color in both the warp and weft."
Several days ago I was cleaning out a closet in my studio--left far too long to be sorted--it was about time, I organize that section of my room. It's interesting what you find in that type of adventure. I pulled out my color gamps that were woven many many moons ago. I thought 'why are these hidden in the box?"