She studied at the École normale supérieure de jeunes filles in Sèvres and passed the agrégation competitive exam.

[5] Jeunes Filles en serre chaude (1934) aimed to be the portrait of the students of the École normale supérieure in Sèvres; the school was reputed to be a "breeding ground of homosexual relationship," and had earlier been the subject of a novel exploring same-sex desire, Les Sevriennes (1900) by Gabrielle Réval.

[3] Galzy herself resisted such a reading (called the "autobiographical fallacy" by literary critics), claiming that writing fiction allowed her a detachment from reality.

In Les Allongés, for instance, readers should find, besides a possible biographical connection, "a more general metaphysical investigation and validation of human suffering.

"[3] Critics note, however, that explicit denials that a given novel is a roman à clef are often a rhetorical move; such a denial is given on the first page of Jeunes Filles en serre chaude, a novel of "intergenerational love" (between teacher and student) in a "pedagogic context" similar to Galzy's experiences at the École normale supérieure[8] which questions "the suitability of contemporary educational opportunities for young women".

[8] Galzy, like other women writers of her generation (the period between the two World Wars), has suffered from critical neglect[11][12] that she "deserves to be better known today" is a common statement in many publications on her.