This volume investigates the criteria used to define a philosophical classic and explores why certain significant works are excluded from the contemporary canon. Editor Eric Schliesser, a scholar of early modern philosophy, compiles ten original essays from various philosophers to examine texts that have been unjustly overlooked. The collection argues that the current philosophical canon is subject to historical contingency and disciplinary bias, suggesting that re-evaluating these neglected works can expand the boundaries of the field. By analyzing both forgotten texts by famous thinkers and works by marginalized figures, the contributors provide a framework for understanding how philosophical reputation is constructed over time.

Scholars and students of philosophy frequently note that this text serves as a valuable resource for challenging traditional academic curricula. Experts highlight the volume as a thought-provoking contribution to meta-philosophy that encourages a more inclusive approach to historical research.