In Possessed, Rebecca R. Falkoff asks how hoarding-once a paradigm of economic rationality-came to be defined as a mental illness. Hoarding is unique among the disorders included in the American Psychiatric Association's DSM-5, because its diagnosis requires the existence of a material entity: the hoard. Possessed therefore considers the hoard as an aesthetic object produced by clashing perspectives about the meaning or value of objects.The 2000s have seen a surge of cultural interest in hoarding and those whose possessions overwhelm their living spaces. Unlike traditional economic elaborations of hoarding, which focus on stockpiles of bullion or grain, contemporary hoarding results in accumulations of objects that have little or no value or utility. Analyzing themes and structures of hoarding across a range of literary and visual texts-including works by Nikolai Gogol, Arthur Conan Doyle, Carlo Emilio Gadda, Luigi Malerba, Song Dong and E. L. Doctorow-Falkoff traces the fraught materialities of the present to cluttered spaces of modernity: bibliomaniacs' libraries, flea markets, crime scenes, dust-heaps, and digital archives. Possessed shows how the figure of the hoarder has come to personify the economic, epistemological, and ecological conditions of modernity.