What has a use in the future, unforeseeably, is radically useless now. What has an effect now is not necessarily useful if it falls through the gaps. In For a Pragmatics of the Useless Erin Manning examines what falls outside the purview of already-known functions and established standards of value, not for want of potential but for carrying an excess of it. The figures are various: the infrathin, the artful, proprioceptive tactility, neurodiversity, black life. It is around the latter two that a central refrain echoes: "All black life is neurodiverse life." This is not an equation, but an "approximation of proximity." Manning shows how neurotypicality and whiteness combine to form a normative baseline for existence. Blackness and neurodiversity "schizz" around the baseline, uselessly, pragmatically, figuring a more-than of life living. Manning, in dialogue with Félix Guattari and drawing on the black radical tradition's accounts of black life and the aesthetics of black sociality, proposes a "schizoanalysis" of the more-than, charting a panoply of techniques for other ways of living and learning.

In 1911, Joseph Bailie, a professor at Nanjing University, often took his Chinese students to tour Nanjing's shantytowns. One student, the son of a district magistrate, followed Bailie from hut to hut one rainy day, and was grateful that Bailie opened his eyes to the poverty in his own city.

However, twenty years later, when M. R. Schafer, another Nanjing University professor, showed his students a film that included his own photographs of the poor quarters of Nanjing, his students were so upset that they demanded his expulsion from China.

Zwia Lipkin explores the reasons for these starkly different reactions. Nanjing in the 1910s was a quiet city compared to 1930s Nanjing, which was by that time the national capital. Nanjing had become a symbol of national authority, aiming not only to become a model of modernization for the rest of China, but also to surpass Paris, London, and Washington. Underlying all of Nanjing's policies was a concern for the capital's image and looks—offensive people were allowed to exist as long as they remained invisible.

Lipkin exposes both the process of social engineering and the ways in which the suppressed reacted to their abuse. Like Professor Schafer's movie, this book puts the poor at the center of the picture, defying efforts to make them invisible.