This set includes 4 DVDs and a guidebook titled "Essentials of Tai Chi and Qigong" by David-Dorian Ross. The content is suitable for adults and further education, and covers the subjects of health and fitness through exercise. The DVDs are in English language and published by Teaching Company, LLC, T.H.E. in 2014. The author, David-Dorian Ross, is an expert in the field of Tai Chi and Qigong, making this set a valuable resource for those interested in the subject.