Mileva Einstein was not only Albert Einstein's first love, wife and mother of children, but also one of the first European women to study physics. As a scientist she collaborated in her husband's discoveries mainly in the field of mathematics, where her knowledge surpassed his. With this novel based on real events, Slavenka Drakulic' draws the overwhelming portrait of a woman who fought against her physical deficiencies, who never gave up, but who could not have a brilliant career as a mathematician, although she was undoubtedly an exceptional talent. Mileva Einstein, who came to Switzerland to study science from the countryside, who had support among scientists, gave up her career for her famous husband and, later, for her children. The novel about Mileva Einstein is a novel of pain, of how to face life's misfortunes, how to live and survive, how to be a woman and not lose your sanity. Mileva Einstein: A Theory of Sadness is a novel in which the author brilliantly immerses the reader in the life of the protagonist, to identify with her problems, her struggles, her sorrows and joys.