Data on ferroelectric and antiferroelectric behaviour of pure compounds and solid solutions are critically evaluated, and in addition all other properties relevant to the characterization of these crystals are presented in tables and figures. Subvolume A covers oxides, Subvolume B non-oxides, and Subvolume C organic and liquid crystals as well as polymers. Each subvolume consists of a printed version and an electronic version on CD-ROM on which all the compiled data can be found by navigation and fulltext search. The printed version primarily serves as a supplement to the preceding volumes III/28 and III/16. Thus, only a fraction of tables and figures on CD-ROM are selected and presented in the printed version.