The gnarl pattern is not a defined formula, rather it arises as a result of certain combined ranges of values for variables of a formula. This given, the pattern may range from tight spiral-like structures to mere kinks in a line. Perhaps its fascination lies in its representation as the beginning of individuality, as a dynamic entity in possession of a stable structure in the surrounding flow: think Jupiter's Great Red Spot, or just eddies in a stream. This calendar is a colourful celebration of its full range of form.