Olga and Angel are twins who live great ?adventures? in their daily life. These six books present topics that are very close to children in an entertaining way. At the same time that they enjoy an entertaining story, they learn basic concepts such as colours, shapes, numbers, opposites, animals, the school environment and that of their home. The memory capacity is also worked, with the last double page showing pictograms of the most important vocabulary in the book, for them to go back to the story to find.
