In 1957 the Foreign Service Institute, the State Department's school for diplomats, recorded a Spanish course that is still one of the most thorough ever made. Here it comes with new illustrations, restored audio (the original tapes are one tap away), and, for invited learners, an AI tutor to talk it through with.

Alongside it is the Defense Language Institute's Spanish course, a book of its own: dialogues and listening passages, each paired with the FSI unit it fits.