Volume 20 of "Research in Social Stratification and Mobility" continues to remain at the forefront of the diverse group of social scientists who study social inequality and is now the official publication of the Social Stratification Research Group of the International Sociological Association (RC-28). This issue features a comprehensive retrospective on the 40 years of contributions to social stratification research made by the late William Sewell and the Wisconsin Longitudinal Survey, including an all-inclusive bibliography of publications. Other contributions address the growing differences between workers with full-time jobs and various categories of the underemployed (in Israel, the United States and Germany), social mobility in Korea and Sweden, subjective responses to social inequality and the social consequences of status inconsistency, and analyses of class consciousness and growing wealth inequality in the OECD.