The admissibility of personnel selection procedures is typically discussed from the perspective of personal rights. The author systematically addresses the topic starting from constitutional law principles. This enables him to gradually organize the vast array of sources in literature and case law and to elaborate on the current legal situation in all its individual aspects in detail. The prevailing doctrine is critically examined in many respects, yet it remains a recognizable point of reference. The publication exclusively and comprehensively addresses the legal issues of corporate personnel selection in the context of the recruitment relationship and will be of great benefit to anyone dealing with labor law. Additionally, those interested in constitutional law will also find the discussions valuable. Finally, the practitioner in the field will be able to accurately assess the limits of admissibility and the legal risks of their own activities, thanks to the clear language and numerous concise summaries in the treatise.