The book "Finite Geometric Structures and their Applications" offers a comprehensive examination of finite geometric structures and their diverse applications in mathematics. It brings together contributions from various authors who address specific aspects of finite geometry, including graphs, designs, and projective spaces. The topics covered range from construction problems in finite projective spaces to the latest results on Steiner triple systems. This collection of works is of interest to both students and professionals who wish to engage with the theoretical foundations and practical applications of finite geometry. The contributions are written in German and provide a deep insight into the mathematical concepts underlying these structures.