A new version of SHAPE, a program for calculating continuous shape measures of polyhedral structures, is now available for download (go to Downloads tab). NEW FEATURES OF SHAPE 2.1 – Easier plotting of shape maps and minimal distortion pathways. – Distinct labelling of crystallographically non equivalent atoms. – Custom made reference shapes. – Selection of structures from a CSD search using stereochemical criteria. – Generation of movies of interconversion pathways between two ideal polyhedra.