"The Routledge Companion to Thought Experiments is a valuable resource for anyone interested in thought experiments. It contains discussions of the identity and nature of thought experiments, their roles in different disciplines, the ways they figure in reasoning and representation, and their contributions to understanding."Catherine Z. Elgin, Harvard University, USA"This companion is a faithful reflection of contemporary discussions over thought experiments, which are more rich and complex than can be indicated in this short review."Carla Rita Palmerino, Metascience, 2019"The Routledge Companion to Thought Experiments is an extensive reference work for the lover of thought experiments. Scientists, philosophers and historians get their money's worth due to the multitude of perspectives included in the collection." James Robert Brown, The Reading Club of Everything, 2020