I. Introduction: General remarks.- Definition of ferroelectrics and antiferroelectrics.- Remarks on some fundamental concepts and quantities.- Survey of history of ferroelectrics research.- Symbols and units. II. Data: YMnO3 family.- SrTeO3 family.- Stibiotantalite family.- Tungsten-bronze-type oxides.- Pyrochlore-type oxides.- Sr2Nb3O7 family.-Layer structure oxides.- BaAl2O4-type oxides.- LaBGeO5, LiNaGe4O9.- Li2Ge7O15- Pb5Ge3O11 family.- 5PbO2 2P2O5, Ca3(VO4)2 family.- (Gd2(MoO4)3) (GMO) family.- Boracite-type family.- Rb3MoO3F3 family.- Miscellaneous crystals.