See a photo step-by-step of doing the double treble crochet stitch. Yarn over hook three times, then insert hook into next stitch. Yarn over hook and draw yarn through stitch - five loops on the hook. Loop yarn over hook and draw through two loops, (there are now four loops remaining on the hook)
Marquetry is the process of decorating an object's surface by cutting and fitting together many pieces of thin layers to create an image. It's often done with veneers, or thin sheets of material like hardwood.
Triquetra (Triqueta, Trinity Knot) The triquetra (sometimes, triqueta) is a tripartate symbol composed of three interlocked vesica pisces, marking the intersection of three circles. The triqueta symbol predates Christianity and was likely a Celtic symbol of the Goddess, and in the North, a symbol of the god Odin.