The study reported here attempted to answer the following questions: Who are the Puerto Ricans living in Newark? What are some of their characteristics, such as their family composition, education, length of residence in Newark, religious affiliations and economic situation? What are some of their basic life styles? How do Puerto Ricans in Newark view certain basic institutions in education, social services and health, and how do they relate to those insitutions? What are some potential or actual areas of conflict between the Puerto Rican life styles and life styles viewed as "American"? What specific actions could be recommended? The bulk of the data was gathered through interviewing adult members of the 120 families randomly picked for the sample. All interviewers were Puerto Ricans. In addition, other data was gathered through interviewing community leaders and agencies. Such data included the number of Puerto Ricans served and employed by different helping agencies and institutions, surveying prices of typical Puerto Rican food items and visiting religious stores and observing what customers bought. Associated with the author in the fieldwork phase of this study from January 1970 to June 1970 were the students of the class, Puerto Rican Life Styles and the American Urban Experience, of Livingston College; Rutgers, the State University of New Jersey. (Author/JM)