This script is intended as an introduction to the fundamentals of Administrative Law. Here, one can review and prepare using exam-type examples of the topics typically covered in introductory lectures. These include, for example, the characteristics of administrative acts according to Section 35 of the Administrative Procedure Act (VwVfG), the requirements for the legality of an administrative act, as well as the revocation and withdrawal of an administrative act according to Sections 48 ff. VwVfG. The name niederle media stands for scripts that are largely authored by individuals with several years of teaching experience as university lecturers or workshop leaders, which - present exam-relevant topics in a compact manner, - can usually be worked through in 1-2 days, thus saving time, - are understandable enough for beginners to grasp immediately, - include case studies, overviews, and diagrams, - are very affordable (starting from 7 EUR).