Temporary work has not only become an integral part of the corporate and employment landscape, but it is also a rapidly growing industry. It emerges as an interesting manifestation within the economic structure and deserves closer examination in this work. Under the Hartz laws, it has undergone significant changes. What effects do these new regulations have on temporary workers and temporary employment agencies? The author provides an overview of the fundamentals of employee leasing as well as the development in Germany, presenting the legal changes alongside the market development and structure of temporary work. He analyzes the economic situation of a temporary employment agency as a representative of the entire industry. The main operational functions characteristic of this sector, namely the procurement and distribution of personnel, are discussed. The conclusion summarizes the points made and addresses the questions raised in the introduction. The book is aimed at all those interested in engaging with this topic.