April 1980 issue of Warp and Weft, a monthly bulletin from Robin & Russ Handweavers of McMinnville, Oregon, edited by Russell E. Groff. The featured sample is a mock corduroy: a 4-shaft twill-and-tabby ribbed fabric in 24/2 mercerized cotton and 8-cut rayon chenille, with threading, tie-up, treadling, reed, cost and finishing notes, plus ideas for varying rib sizes, textures and colors. Other items include the editor's announcement of a subscription price increase, a description of the cover photo of a woven outfit by Penny Sanchez, a correction about a weft-faced rug on the January 1980 cover, a review of The Art of the Felt Maker by M.E. Burkett, and classified and display advertisements.