This volume examines conditional structures in Old Babylonian from a linguistic point of view, drawing on a corpus of letters, law collections, and omens. All of the conditional patterns are provided with a syntactic characterization, so that each conditional sequence is differentiated from all other potential sequences. The volume includes detailed discussion about the values of various verbal and other predicative forms in the conditional structures occurring in the corpus, the differences between superficially similar conditional patterns, and the functions of the various conditional patterns. Many traditionally difficult points are treated and given suitable solutions. The concluding sections of each chapter include linguistic glosses and more general discussions that provide linguistic typologists a window onto the conditional system of Old Babylonian.