Summative evaluation of Cycles R-40 of the Listen Look Learn (LLL) Multi-Media Communication Skills System was conducted in 1967-68, using 28 experimental (LLL system) and 28 control (variety of basal reading programs) classes of first-grade children. Testing included the use of the Metropolitan Readiness Tests; the Pintner-Cunningham Primary Test; the Cooperative Primary Tests, Listening; and the Stanford Achievement Test. Additional evaluation, provided through teacher questionnaires, indicated enthusiasm for the LLL system. Analysis of variance and analysis of covariance, using the BMDO5V Computer Program, indicated significantly higher reading achievement test scores for LLL children, similar scores for average-ability LLL children and high-ability control children, and higher scores for suburban children than for urban children. It was concluded that the LLL system is preferred by teachers and is extremely effective with children at all ability levels, from all community sizes, and from every socioeconomic status. Tables of results are included. (MD)