This script is intended as an introduction to the fundamentals of insolvency law. It provides an overview of the types of insolvency proceedings, the conditions under which an insolvency proceeding is initiated, and how the insolvency estate is managed. 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, and which - present exam-relevant topics in a compact manner, - can typically be worked through in 1-2 days, thus saving time, - are so clear that even beginners can easily understand them, - include case studies, overviews, and diagrams, - are very affordable (starting at 7 EUR). Due to these characteristics, our scripts are excellently suited for a first, uncomplicated introduction to the subject or for a quick review just before the exam.