https://door.donau-uni.ac.at/o:5794 Handbook on Irregular Migration Data. Concepts, Methods and Practices Kierans, Denis Denis Kierans 0000-0003-2354-7861 University of Oxford Kraler, Albert Albert Kraler 0000-0003-3172-9542 Universität für Weiterbildung Krems University of Krems Press text eng This Handbook brings together concepts, findings, methods, and case studies to offer a clear, practical understanding of irregular migration data. It addresses the challenges of conceptualising, measuring, interrogating, and using data on one of Europe’s most politically sensitive migration issues. Drawing on examples from across Europe and beyond, it provides guidance on concepts and definitions, ethics, estimation methods, data innovation, and policy application. It is designed to support policymakers, practitioners and researchers seeking more informed, transparent, and coordinated approaches to irregular migration data. irregular migration measurement concepts statistical data estimation methods data ethics data quality register data informal work http://creativecommons.org/licenses/by-nc/4.0/ https://door.donau-uni.ac.at/api/object/o:5794/download 10.48341/g31s-vq79 https://door.donau-uni.ac.at/o:314 application/pdf 6.02 MB 2025-09-10