Bowker and Star demonstrate that classification systems are infrastructures of social reality rather than passive descriptive tools. Categories embedded in medical records, racial classifications, standards and information systems determine what becomes visible, comparable and actionable while rendering other experiences anomalous or absent. Their iconic concept of infrastructural inversion directs attention toward the conventions and labour that remain unnoticed when systems function smoothly. Classification is simultaneously technical, moral and political: every category distributes consequences, yet its historical contingencies tend to disappear once it becomes routine. The methodological achievement lies in combining ethnography, history and information studies to trace how standards travel across institutions and acquire durability. Boundary objects enable cooperation among communities without requiring complete agreement, offering a nuanced account of coordination across difference. The book bridges science and technology studies, archival theory, sociology and design by showing that information architecture is always also an architecture of inclusion, exclusion and memory.
