[…] Mark Worrell’s Dialectic of Solidarity […] examines the Institute’s [Institute for Social Research] massive empirical research project on antisemitism among American workers during World War II. The project, which was based on interviews with over 900 workers mainly in wartime industrial centers such as Los Angeles, San Francisco, and Detroit, was carried through to completion but was never published and thus remains virtually unknown today. Worrell’s book, which is the only full-length study of the project in any language, fills this large gap in our knowledge of the history of the Frankfurt School and makes an important contribution to the much needed reassessment […] of the crucial role of empirical social research in Critical Theory.John Abromeit, The Journal of Modern History, Vol. 85, No. 1 (March 2013), pp. 161-168