Study 1 identified a 3-dimensional latent structure of the prototype of love, based on factor analyzing centrality ratings of 68 prototypical features of love identified by B. Fehr (see record 1989-04996-001); we labeled these Passion, Intimacy, and Commitment. Studies 2 and 3 cross-validated this result with new samples. Study 4 showed convergent and discriminant validity of scales based on these dimensions and compared results with the centrality-rating method to an alternative prototype-relevant method. Study 5 found convergent and discriminant validity with a version of RJ Sternberg's (1988) Triangular Love Scale. Study 5 also obtained the same 3-dimensional structure for both people's concept of love and descriptions of their own love relationships but the emphasis among dimensions corresponded only moderately between concept and descriptions. Study 6 showed correspondences between prototype-feature dimensions and love styles (C. Hendrick & S. Hendrick, see record 73: 13421; JA Lee, 1977). Study 7 examined a shortened scale for the 3 dimensions and replicated the main results of Study 6 with that scale.(PsycINFO Database Record (c) 2016 APA, all rights reserved)