Timbering is the book that has as many carpentry books lack: a detailed description of how to make the knot.
250 variants of knots learn it have been around since the carpentry technology came to the Nordic countries during the 1000's. Many of them have disappeared, but some still live there. Here's a simple cat knot, a knot that provides a stable knot chain and the remains dense solid timber dries and shrinks. Step by step we follow the design of the corner and timber frame from when the timber is prepared until the ridges into position. The description is rich with clear illustrations showing the various stages and make the workflow easy to follow.