The Rosetta Stone German Level 1-5 Set with a set of Barron's German Books offers comprehensive language courses for learning German. This CD format program, designed for both Windows and Mac operating systems, comes with a standard license category and can be used on one device. Originating from the United States, this set provides an interactive and immersive way to learn the German language. The inclusion of Barron's German Books further enhances the learning experience for individuals looking to improve their language skills.