Dr. Salk won the custody of his two children, Pia and Eric, in 1975 after a precedent-setting divorce trial in which it was ruled that he was "the parent that can best nurture their complex needs and social development." A problem of many parents, he said, is not that they spend too little time with their children, but that "it's basically useless time, because they're not actively involved with the child." Salk himself makes a point of having breakfast and dinner with Pia and Eric virtually every day, and includes them in his social life whenever possible. "Their friends are frequently my dinner guests." Each summer he spends three months with them at an island retreat in Maine, while commuting to New York for his professional commitments. Dr. Salk enjoys cooking, and also likes to go to restaurants. Dr. Salk's newest project is a 13-part series for public television, to be aired starting September 29. He will appear each week with three children to discuss such topics as love and attachment, divorce, and "making a family work." The programs, he said, "are geared to family viewing time, so children and their parents can watch together." ******** EASTSIDER FRANCESCO SCAVULLO Photographer of the world's most beautiful women 6-16-79 As Richard Stolley, the managing editor of _People_ magazine, is fond of saying, every publication on the newsstand is actually two publications. One is the inner contents, and the other -- far more important in terms of sales -- is the front cover. A stunning cover can make the difference of tens of thousands of dollars in revenue for a national magazine, and that's why _Cosmopolitan_ has engaged the talents of photographer Francesco Scavullo for virtually every one of its covers for the last 11 years. He has done album covers and posters for Paul McCartney, Barbra Streisand, Donna Summer, Judy Collins and many others. Among the publications that rely on his most often for covers are _Vogue_, _Playboy_, _Glamour_, _Harper's Bazaar_, _Redbook_, _Ladies Home Journal_, _People_ and the magazine that started it all -- _Seventeen_ -- which ran its first Scavullo cover in 1948, when he was still a teenager himself. He never had any formal training in photography, but got plenty of practice during his Manhattan boyhood when he began taking pictures of his sisters and their girlfriends. Francesco delighted in applying makeup to their faces, running his hands through their hair, and dressing them in sexy gowns. He quickly made two discoveries -- first, that there's no such thing as an ugly woman, and second, that the photographer and his subject must be personally compatible. Although he charges approximately $3,000 for unsolicited private portraits, Scavullo won't photograph anyone with whom he has bad rapport -- and that includes all people who don't take care of themselves physically or abuse themselves with drugs.