Ngugi wa Thiong’ o, who recently returned to Kenya for a visit, was the man who wrote about the need for writing and reading and publishing in your mothertongue and in your fathertongue (other familymembers not to be excluded).
When we go south we reach South Africa. This country is blessed with many official languages (and probably a few unofficial ones). Books are published in many languages and this is encouraged. Read about one of the ways this is done.