* Self-taught: As a black woman in the segregated South of the 1930s, access to formal education would have been extremely limited. Calpurnia may have learned to read on her own, possibly through informal lessons or simply through her own determination and resourcefulness.
* From another black person: It's likely she could have learned from another black person in her community, either someone with more formal education or a more experienced reader.
* From the Finch family: It's possible that Atticus, being a lawyer and a reader, may have helped Calpurnia learn to read. This would make sense, given their close bond and Atticus's commitment to justice and equality.
Regardless of how she learned, Calpurnia's ability to read is a significant symbol of her intelligence and resilience. It allows her to navigate the world, understand complex ideas, and provide a source of knowledge for the Finch children.