We have an agreement with the public school system and get the government text books for which the children are given free of charge. We have our own French and English textbooks. I was in a bookstore in Santiago where they sell the books Rubio is talking about and there is no way most of our clients could afford those kind of prices.
I have been all over Santiago looking for the following 3 books that the book company and the school claims La Sirena has and 3 of their stores claim they do not have them. Neither does 7-8 other book stores in Santiago, including the BIG one with 2 branches (Lendoiro?)
(1) Lengua Espanola 4, E. Santillana, serie todos juntos.
(2) Matematica 4, E. Santillana, serie todos juntos.
(3) Ciencias Sociales 4, E. Santillana, serie todos juntos.