The study guides for course completion exams (exámenes extraordinarios) are workbooks in print or digital format containing theoretical explanations of the notional and procedural contents as well as practice exercises pertaining the current English as a Foreign Language programs of the Escuela Nacional Preparatoria and the middle-school system known as Iniciación Universitaria.

The printed versions are sold at the windows in every Prepa. As for the digital study guides for the Iniciación Universitaria program, you can find the links to them on the right.