While developed primarily for research purposes, these programs have found utility in the area of education as well, as noted in recent symposia at national American Chemical Society meetings (Kantardjieff, 2005 Battle et al., 2009 ). Since then, personal computing power has increased immensely, and a number of computer programs have been introduced that allow real-time interactive construction of crystals ( CrystalMaker, 2009 Shape, 2009 ) and exploration of molecular structure and bonding in the context of databases. The introduction of ORTEP (Johnson, 1965 ) over 40 years ago made possible for the first time a ready two-dimensional projection of the three-dimensional atomic world of crystals and ushered in a revolution in molecular visualization. It goes without saying that visualization is important in the area of crystallography. Introduction – crystallographic visualization
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