The Little Black Book of Griselidis Real” is the portrait of a true humanist who made a career out of compassion. Hailed as a virtuoso writer and a “revolutionary whore,” Griselidis Real (1929-2005) chanced into prostitution at thirty-one after an upper-class upbringing in Switzerland. Serving clients from all walks of life, Real applied the anarcho-Marxist dictum “from each according to his abilities, to each according to his needs” to her profession, charging sliding-scale fees determined by her client’s incomes and complexity of their sexual tastes. Real went on to become a militant champion of sexual freedom and prostitutes’ rights. She has described prostitution as “an art, and a humanist science,” noting that “the only authentic prostitution is that mastered by great technical artists … who practice this form of native craft with intelligence, respect, imagination, heart…”.