Akkadian, written in the cuneiform script, is the most important language of the Ancient Near East and one of the most important members of the Semitic language family. Old Babylonian is the best attested period and dialect of Akkadian. Old Babylonian was written all over Mesopotamia (modern Iraq, Syria) and some neigboring regions during the first half of the 2nd millennium BCE. The book describes the language of middle Old Babylonian from the kings Sin-muballit to Samsu-iluna. Volume 1 extensively describes the orthography, phonology, nouns, pronouns and numbers of Old Babylonian. Michael P. Streck , Ph.D. (1992), is Professor of Ancient Near Eastern Studies at Leipzig University (Germany). He has published several books on Akkadian grammar, lexicon, and literature and was main editor of the Reallexikon der Assyriologie und Vorderasiatischen Archäologie (2005–2018).