The Cortez Method is a Spanish teaching method developed by Juan Guillermo Cortez, the founder and CEO of Chicago's Spanish Language Center. This conversational method guides students from the basics of Spanish in the introductory levels through the language's complex grammatical structure in the advanced levels. The Cortez Method targets four levels (Introductory, Beginners, Intermediate, Advanced) through different workbooks of the Cortez Method series. Each level is 100% conversational and presents new tenses and vocabulary that then are constantly repeated in subsequent levels to improve retention. Each level provides hundreds of written exercises with a corresponding answer key. The Cortez Method is the answer for students who are serious about learning Spanish and teachers who are serious about teaching Spanish.