Edited by R. Michael Alvarez and Jonathan N. Katz

During our tenure as editors of Political Analysis, we have published a wide variety of important papers that have made strong contributions to political methodology.  For our last virtual issue, we have put together another set of Greatest Hits --- this time focused on two areas where we believe that the journal has made strong contributions to the field of political methodology since 2010: measurement and causation. This virtual issue provides four recent articles in each area, selected by the Co-Editors. Each of these articles help methodologists improve their research and teaching, and they collectively demonstrate the great advances made in each area since 2010.