The two technical reports in this volume are devoted to describing the poor in Atlanta, and the persons who become clients in the service programs operated by Economic Opportunity Atlanta, and deal with residents of the areas served by the Neighborhood Service Centers located in the target area. Two samples are identified specifically: the Cohort Sample, and the Client Sample. The first report covers Cohort Sample A. From this general resident population, certain individuals decided to go to a Center to seek information and/or help. When these persons arrived at the Center and were admitted for some form of service, they were automatically made research assistants at each Center interviewed every fourth client over a period of about eight months. The second report in this volume covers personal, attitudinal, socioeconomic, and other characteristics of the clients. (Included are 73 tables and a questionnaire.) (author/ly)