Works that we are preparing

Second Chinese Textbook for Elementary School.
Author: Roberto Carlos Pavón Carreón.
21th Day.
Author: Emmanuel Castelán Briones.
Chinese Grammar Summary.
Author: Roberto Carlos Pavón Carreón.
Sensibility
Author: Omar Brindis Furiate.
Check the Czech Language
Author: Roberto Carlos Pavón Carreón.

All these books are in Spanish.