This is the most comprehensive state-of-the-art work on the measurement of love. It includes descriptions of a theoretical paradigm and two love models, a common mythological framework for theory development and evaluation, an introduction to over 40 theories for love development, maintenance, and dissolution, the integration of research principles and strategies, the compilation of 26 popularly used scales, and illustrations of three empirical research programs in measuring love and intimate relations. This book complements Tzeng's most recent work, Theories of Love Development, Maintenance, and Dissolution.