This textbook covers all the required learning areas and content for social insurance specialists as outlined in the federal curriculum. The structure of the textbook generally adheres to the guidelines of the curriculum. Only the sections on the European Union have been prioritized, as knowledge of the history of the European Union is a prerequisite for understanding the Economic and Monetary Union and the system of European central banks. Important legislative changes, new legal regulations (especially in social insurance law), current statistical data, and graphical statistics have been taken into account. The appendix of the textbook includes relevant improvements in statutory pension insurance, such as the pension without deductions at age 63, enhancements to the disability pension, and the increase in the mother's pension.