Master Spanish grammar, all verb tenses, subjunctive (with adverbial-clause decision tree), pasiva refleja, perífrasis verbales avanzadas, acentuación, 700+ difficult vocabulary, idioms, proverbs, DELE C2, AP Spanish, regional dialects (Mexico, Argentina, Spain, Colombia, Chile, Caribe, Andino, Mayense, Panameño, Costarricense, Guineoecuatoriano, Filipino Chabacano, Spanglish), and deep literature (Cervantes, García Márquez, Borges, Neruda, Paz, Fuentes, Bolaño, Sor Juana, Lorca, Vallejo, Matute). 230 units, 3448 lessons.