In this book Maja Niševic investigates the practice of profiling using Big Data Analytics, with the main focus on the interplay between the European Union General Data Protection Regulation (GDPR) and the European Union Unfair Commercial Practice Directive (UCPD). This book is an interdisciplinary study of profiling as a technological tool, and of its legal framework, including comparative analysis of the case law on personal data processing and an analysis of the interplay between the GDPR and the UCPD.