The Wortatlas der arabischen Dialekte / Word Atlas of Arabic Dialects (WAD) intends to provide an unprecedented survey of the lexical richness and diversity of the Arabic dialects as spoken from Uzbekistan to Mauretania and Nigeria, from Malta to Sudan, and including the Ki-Nubi Creole as spoken in Uganda and Kenya. The multilingual word atlas consists of four volumes in total with some 500 onomasiological maps in full colour. Each map presents a topic or notion and its equivalents in Arabic as collected from the dialectological literature (dictionaries, grammars, text collections,...