In labor law consulting practice, employee mandates predominate. Therefore, this commentary brings together all relevant laws of individual labor law in one volume, along with significant references to collective labor law. The key norms of the Insolvency Act (InsO), the Social Code (SGB), the Commercial Code (HGB), and the Trade Regulation Act (GewO) are also explained in a practical manner. The advantages: This work argues further where existing commentary literature often settles for common patterns of argumentation. The commentary confidently outlines the scope for implementing employee positions and explores what holds up in court. The authors align with the rulings of the Federal Labor Court (BAG) and consistently incorporate decisions from the European Court of Justice (EuGH). The 4th edition from 2017 takes into account all new regulations from the 18th legislative period, which has focused on employee rights like no other before. The commentary is comprehensive.