Libraries: loans for local library and type of work in 2011

The dataset contains data on loans of different documents and materials in the local libraries of Milan. The variables according to which loans are classified are: library of first enrollment, library where the loan is perfected, type of material borrowed. Please note: the “first treatment” describes the loan of works not yet catalogued and not yet included in the patrimony of works owned by libraries but of which a summary catalog has been made to allow an immediate loan.本数据集收录米兰当地图书馆各类文献与资料的借阅数据。用于对借阅行为进行分类的变量包括：首次登记图书馆、借阅完成所在图书馆以及借阅资料类型。请注意：“首次处理（first treatment）”指的是对尚未编目、未纳入图书馆馆藏作品目录，但已编制简要编目以支持即时借阅的作品开展的借阅操作。