The Audio Program, coordinated with the Actividades auditivas from the Cuaderno de actividades, is available in audio CD format and also on the Online Learning Center. Additionally, an audio recording of the Enlace a la literatura passages and selected Lecturas from the textbook are included in special audio CDs as part of Audio Program. Part B is used in conjunction with the Workbook/Lab Manual Part B or the Combined Workbook/Lab Manual.