Although born in Paris, her origins are Guadeloupean and she has written several books on the difficulties and torments of her childhood as a Black person growing up in Parisian society.

[2] Pineau took to writing in order to console the difficulties of her French upbringing and Caribbean heritage, as her works would connect the two cultures rather than separating them.

Her book L'Exil Selon Julia highlights this, as she relies on the memories and experiences of her aged grandmother to help her learn about her society's traditions and her own cultural background.

In the book, she also mentions that the discrimination she felt as a child did not only apply to French society in Paris, but also to the people of Guadeloupe, who rejected her for being too cosmopolitan upon her return to the land of her ancestors.

She for many years lived in Paris and, whilst maintaining her writing career, has also returned to being a psychiatric nurse in order to balance out her life; but she recently has moved back to Guadeloupe.