The American Journal of Botany (AJB) is available on the shelves of most college and university libraries in the U.S., as well as in many faculty offices, and in research libraries affiliated with botanical gardens. This article presents information on how librarians view AJB, the role that scientific associations play in the perceived quality of the journals they publish, the unique nature of botany literature (compared to other sciences), AJB as a core journal, and a general discussion of the factors that influence librarians decisions when deciding to cancel a subscription or keep a journal in their collection.