Using the theme of Currency to invite reflection on the contemporary power of the photograph to relay and relate meaning across distance, the Triennial of Photography Hamburg explores the value of photography in the 21st century. The extension of this economic term to art and visual culture allows for a sustained engagement with photography and its relationship to value-making, canon-making, access, circulation, and knowledge production. At a time when the production, distribution, and consumption of photographic images has become ubiquitous and we have learned to structure our contemporary world through a lens, the digital image has become the currency of exchange on social platforms. Fostering interdisciplinary dialogue, the Critical Reader Lucid Knowledge: The Currency of the Photographic Image gathers international perspectives that reflect on how photography shapes today's narratives, as well as our perception and experience of the world.

A powerful reframing of the study of Black art and the historical and contemporary status of Black lives Perceptual Drift offers a new interpretive model drawing on four key works of Black art in the Cleveland Museum of Art's collection. In its chapters, leading Black scholars from multiple disciplines deploy materialist approaches to challenge the limits of canonic art history, rooted as it is in social and racial inequities. The opening essay by Key Jo Lee introduces the concept of "perceptual drift": a means of exploring the matter of Blackness, or Blackness as matter in art and scholarship. Christina Sharpe examines Rho I (1977) by Jack Whitten; Lee explores Lorna Simpson's Cure/Heal (1992); Robin Coste Lewis analyzes Ellen Gallagher's Bouffant Pride (2003); and Erica Moiah James considers Simone Leigh's Las Meninas (2019). This approach seeks to transform how art history is written, introduce readers to complex objects and theoretical frameworks, illuminate meanings and untold histories, and simultaneously celebrate and open new entry points into Black art. Distributed for the Cleveland Museum of Art