What is the author's style in I Remain in Darkness by Annie Ernaux?

I Remain in Darkness is the diary that Ernaux kept throughout her mother's illness. Ernaux decided to publish these notes more than ten years after her mother's death. Although she did place them in chronological order, she otherwise chose not to edit or alter them in hopes of "echoing the bewilderment and distress that I experienced at the time." Because of this authorial decision, Ernaux's journal fails to tell a complete story. However, the author never intended it to do so; this collection of snippets resonates on an emotional level, not a narrative one. Ernaux sacrifices providing readers with background, which likely would have provided a better understanding of the relationship between herself and her mother.

While all of Ernaux's novels have been autobiographical in nature, I Remain in Darkness is a true memoir, chronicling the exact thoughts that went through Ernaux's mind, as they went through her mind, during the two and a half years that her mother was declining from Alzheimer's disease.