Although this book is also suitable for enabling employees to understand references correctly, it primarily targets employers who are responsible for writing them. This includes board members, managing directors, authorized signatories, HR managers, self-employed individuals such as craftsmen, doctors, lawyers, and many other groups. For supervisors, the assessment, which includes writing references, is an important part of their leadership responsibilities. Therefore, this book will address the phrasing of references and their significance. Employers who need to issue references must pay attention to the concluding sentence of the reference, the actual evaluation of overall performance, and other sections that may conceal more than they reveal in their wording. The various types of references (simple reference).