Kristen C. Howard
In today’s increasingly online world, historians, researchers, and students want and expect online access to historical documents offered by galleries, libraries, archives, and museums. This includes not only journal articles and ebooks, but also primary sources and archival documents, which researchers increasingly expect to find online in searchable, digital formats. In turn, cultural heritage institutions have responded by trying to meet these demands, with various levels of success, for items ranging from census data to yearbooks to photographs. But offering access to digital and digitized collections has a very high cost, in terms of planning, scanning, adding metadata and accessibility features, and most crucially maintenance and long-term preservation. The invisible costs and labour behind online collections are frequently overlooked by researchers. This raises a question that few of us pause to ask: who did the work that made our digital sources accessible, and under what conditions?
This question matters because some of the digitization and data verification work that enables our online access to historical documents relies on the labour of incarcerated people—labour that is, I argue, exploitative. As researchers who depend on digitized primary sources, we have a responsibility to reckon with the hidden human costs of the online access we increasingly take for granted.

A worker operates a book scanner at a library digitization centre. The labour that makes digital collections accessible to researchers is often invisible to those who use them. Image: Book scanner digitization, CC BY-SA 4.0.
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