It's important not to pre-shrink decorator fabrics. Dry cleaning is best for all decorator fabrics. KNOW Right side of the fabric is the printed side that will show. Wrong side is the back of the fabric. Finish is any treatment to the fabric that will cause it to resist water, stains, fading, etc.
Selvage is the finished lengthwise edge of a woven fabric.
Straight grain or lengthwise grain refers to the fabric threads running parallel to the selvages. Bias grain is the diagonal direction at a 45 degree angle. Nap is when a fabric has a one-way design, texture or subtle variations in color depending on the direction they are held. All panels must be cut running in the same direction. Repeat is one pattern or motif printed on the fabric.