The stitches are worked over the canvas, then you wet the canvas and pull out the threads of the waste canvas. Easier said than done, believe me! The canvas dries quickly which means that the glue hardens. So there I am, sitting in a recliner with the hotpad on a towel and a wet paper towel covering the parts of the canvas I'm not working on with a small pair of needlenose pliers. Once you get half the threads pulled out, the rest goes easily, though.
|Finished stitching, waste canvas trimmed away|