This document summarizes David Alexander's career studying disasters over the past 40 years. It begins with biographical information about Alexander and outlines some of the major theoretical frameworks in disaster studies, including debates around defining and measuring vulnerability. The document then discusses trends in disaster research publications and questions whether progress has been made in disaster risk reduction. It also examines the importance of factors like gender, corruption and resilience. Overall, the document provides a high-level overview of Alexander's work in disaster studies and some of the key issues and debates in the field.