Cover Picture (Angew. Chem. Int. Ed. Engl. 8/1992)

The cover picture depicts in the colors of Princeton University two interpenetrating tetrahedra which are nonsuperposable mirror images of each other. According to one of the measures of chirality discussed by Mislow et al. On p. 989 ff., these tetrahedra have attained the highest possible degree of asymmetric. Classical asymmetric shapes in organic chemistry result from the tetrahedral arrangement of four different atoms around a central carbon atom, as illustrated by the ball‐and‐stick models of the enantiomers above the tetrahedra. The review by by Mislow et al. Offers a critical discussion of the measures of chirality as well as an up‐to‐date report on this field—and thus certainly provides food for thought, discussion, and Correspondence.