The works in On the Line address a range of topics, spanning performance and the body, climate change, power, colonialism and identity, heritage and territory. They originate from a common geography of the Americas, the multi-continental, multi-national landmass (and its archipelagos) spanning northern Canada to southern Brazil. Collectively, they portray the complex and contested relationships humans have with notions of resources, environment, wilderness, nature and place. The 'line' metaphor is an organising principle as well as a reference to the precarity of the social and physical environment in this global moment: to be at serious risk, caught, captured—even following the path of a line can be treacherous. On the Line emphasises that photography, in all its forms, delivers a special mandate to document as it also grapples with the deceptions and limitations of the photographic image. The photo-based documentation of various artistic interventions featured in the book underlines this dual condition.