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 in 2011 by Rosetta Stone The Limited, this CD-ROM format course features the totale series and is authored by the Rosetta Stone Staff. This set provides a detailed learning experience for individuals looking to study Chinese (Mandarin) at various levels, offering a thorough foundation in the subject area of foreign language study. With a focus on English as the source language, this product is a valuable resource for anyone interested in mastering Mandarin.