This study investigated the effectiveness of cognitive strategy instruction in writing with adult literacy learners. Three middle-aged African-American adults participating in adult education with the goal of passing the GED received tutoring in a strategy for planning, writing, and revising persuasive essays along with self-regulation strategies. The study used a multiple-baseline design across participants with multiple probes. All the adults made consistent gains from baseline to posttest in the quality and organization of their essays. Mean gains in overall quality from baseline to posttest for the three students were 2.7, 1.9, and 1.7 on a 7-point scale. Percentage of non-overlapping data (PND) was 100% for text structure organization and 89% for quality. The results demonstrate that strategy instruction, which has had positive effects with school-age students, has potential for adult literacy learners as well.