"A Heart So White" is a novel by Spanish author Javier Marías, published in 1992. The story follows Juan, a young translator, who reflects on his life and relationships while attending his father's wedding. The narrative explores themes of love, secrecy, and the complexities of human emotions. The novel is known for its intricate prose and philosophical insights. As Juan delves into his family's past, he uncovers hidden truths that challenge his understanding of loyalty and trust. The book has received critical acclaim and is considered one of Marías's most significant works.