This volume contains a detailed grammatical description of the dialects of Old Arabic attested in the Safaitic script, an Ancient North Arabian alphabet used mainly in the deserts of southern Syria and north-eastern Jordan in the pre-Islamic period. It is the first complete grammar of any Ancient North Arabian corpus, making it an important contribution to the fields of Arabic and Semitic studies. The second edition contains a detailed chapter on the origins of the Safaitic writing tradition and its raison d'être. The volume covers topics in script and orthography, phonology, morphology, and syntax, and contains a chrestomathy and a glossary of over 1000 Safaitic lexical items.