PIP: This is a resume of a study that evaluated 3 communication campaigns carried out by the National Council of Population (CONAPO) between 1972 and 1976, and their effects on perceptions and attitudes regarding family planning. Data were collected in group sessions in Mexico City with lower middle and lower class women between 29 and 32 years of age and with a minimum of 2 children. Women remembered in great detail the 3 basic communications of CONAPO. The message of the second campaign, "The small family lives better," was remembered by the greatest number of women. The slogan of the third campaign, "Lady, the decision to get pregnant is yours," was remembered perfectly by most women but the remainder of the message was not. The visual images transmitted by television were quite clearly remembered except in the case of the third campaign. The auditory elements of the second and third campaigns were clearly understood, but the overall meaning of the first message was confused because a large number of messages used the same slogan. The general reaction towards "the small family lives better" was positive, but a minority of women were frustrated by the third message because it did not include details on how to carry out the proposed decision.