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Frontline reference librarians purvey their skills in a variety of reference service models. These range from the traditional to the tiered to the information commons (IC) to the learning commons (LC). Libraries might use one pure form of any model, a hybrid model, or a model in the process of transformation. A few libraries with space and funding have fully adopted the latest model, the LC. An examination of transformations to the LC indicates that frontline reference librarians can to some extent effect changes in their professional environments.