DISCO TO TANGO & BACK is a DANCE TEXT BOOK that covers not only the social dances of yesterday & today, but teaches how to "read" the dances of tomorrow. The UNIVERSAL UNIT SYSTEM is a method of teaching RHYTHMS as well as a method of annotation that becomes a dancers "sheet music". It is excellent training for children as well as adults & recently has become mandatory for some Physical Education majors. Author, Skippy Blair, conducts teachers training for the GOLDEN STATE DANCE TEACHERS ASSOCIATION & conducts College Seminars covering the system. The book comes with a "1991 UP-DATE" & a 90 minute audio cassette covering Chapters I & II of the book. (Includes instruction to music) "RHYTHM UNITS" are the current "Buzz words" of the social dance world. From competition dancers to dance educators, everyone is talking UNIVERSAL UNIT SYSTEM language. The system teaches the fundamental rhythm units that make up ALL dance. Results are seen week by week instead of year by year. The examinations give credit for understanding as well as performance. No dance student or teacher should be without this book. ALL dance, that is danced in time to music, can be broken into basic rhythm units & their extensions.Skippy Blair is the author of 'Skippy Blair on Contemporary Social Dance: Disco to Tango and Back/Plus Teacher's Breakdown for the Universal Unit System' with ISBN 9780932980014 and ISBN 0932980015.