Information and knowledge have become crucial factors in modern labour markets. In this context, labour-management relations are characterised by an increasing and considerable flow of information. These developments are influenced by new management techniques, such as human resources management, in which the individual is identified as a key element in business success. Furthermore, there is the globalisation of the economy, the increase of international corporate mergers and the unfolding of the network society, which goes hand in hand with technological innovations. These developments not only multiplied the needs for information and the flow of data in employment relations, but also improved techniques of data processing revealing sensitive data of employees. This book deals with employment privacy law, a field of knowledge that increasingly gains influence in legal theory and daily practice. It concentrates on the legal regulation of general human resources data as well as sensitv