The Rosetta Stone Version 4: Chinese (Mandarin) Level 1, 2, 3, 4, & 5 Set is a comprehensive language course designed for foreign language study. Published by Rosetta Stone The Limited in 2011, this CD-ROM format course includes English language materials and is authored by Rosetta Stone Staff. With a focus on Chinese and Mandarin, this course provides a complete language learning experience for levels 1 to 5. Perfect for individuals looking to enhance their proficiency in Chinese, this set offers a structured and immersive way to learn the language.