Many of the characteristics usually used to describe the Mexican American are basically descriptions of individuals from the lower-lower socio-economic class. A second set of attributes that applies to the majority of Mexican Americans is referred to as "Structural-Demographic." These attributes are related to ethnicity, to regionality, to geography, and to nationality. Characteristics most commonly associated with the Chicano, a term associated with the Mexican American, are that his parents come from Mexico and he speaks Spanish. No single attribute characterizes any large proportion of Mexican Americans, and the many potential differences among Mexican Americans can be depicted on a three-dimensional cube, consisting of belief systems, regional differences, and socioeconomic status. The dominant culture and the Chicanos themselves should recognize the undesirability of stereotyping; this awareness should help to free Chicanos to make socioeconomic gains, to adopt a new way of life, and to participate freely in both cultures. There is a need for additional research into the nature, characteristics, traits, and attributes of the Mexican American. (SW)