De Profundis by Oscar Wilde
Known for his witty and flippant literature, Wilde’s writing while in jail was markedly more somber and self-reflective. He was imprisoned for two years of hard labor for his indecency with men, particularly Lord Alfred Douglas. While in prison, Wilde wrote a letter to Douglas articulating the regret he felt for his ethical misconduct. Published posthumously, the apologia chronicles the journey of redemption and spiritual fulfillment that Wilde experienced in confinement.