"Much work has been done to map out the contours of Islamic intellectual production in West Africa before the twentieth century. However, we still do not understand very well the process by which ideas and texts circulated in the region. Lists of specific books imported by West Africans during the nineteenth century are rare (although one such compilation helps frame this paper), and the particular books memorized and/or copied by individual students on particular subjects usually fail to tells us much about their mentors’ libraries. As a result, the reconstruction of a trans-Saharan, much less the east-west Sahelian book trade, if these existed in any formal sense, must be subject to some speculation. Clearly, there was a steady demand in West Africa for Arabic texts; libraries and literary capital have long been understood as an important component of religious authority. But our knowledge of what might have been the actual texts sought in a book trade, is limited. We can deduce something about the distribution of books in West Africa from the authors and subjects studied in particular venues, and from analyses of the citations used in particular scholarly works written by West Africans. But both the works studied and the analysis of citations tell us about books that were known to individual scholars rather than works that were actually in demand. This paper seeks to describe the books—by author and title—that were in heaviest demand by doing an inventory of the contents of a cross-section of West African libraries." (Introduction)