Learning 100 is a multimedia, multimodal, multilevel communication skills system; heavy stress is placed on filmstrips, tapes, and recordings; many of the materials are self-pacing; and a readiness stage and six graded levels of instruction have been developed. At the White Plains Learning Laboratory Center, Learning 100 was used with a group of 64 functionally illiterate adults whose reading levels ranged from readiness to fourth grade. Teachers were provided special instruction in how to use materials and equipment. At the end of the 23-week program, reading gains, as shown on the Stanford Achievement Test, were significant; the greater variability on posttest scores indicated that the system encouraged individual development. The administrator felt that the system was manageable by teachers when they had special training; he saw a relationship between student achievement and teacher experience. Teachers were pleased with the structured systematic approach, high interest levels maintained, adult-oriented materials, varied modes of instruction, and positive motivational changes in the students. The students developed independent work habits, increased self-assurance, and saw improvement in their own educational growth. (eb)