The 'pivot pattern' is a unique type of chiasmus, a linguistic pattern characterized by an inversion of the internal order of a phrase or passage. The main idea is found primarily at its pivot, while its elements, normally of an uneven number, are distributed on both sides of the pivot in a mirrored symmetry. Klaus undertakes here to compile a 'grammar' of the pattern, and to characterize, exemplify and differentiate its various forms.