It’s been more than four decades since the Boston Women’s Health Book Collective published the first edition of what would become one of the seminal books about women’s health, “Our Bodies, Ourselves.” Especially for college-age women in the 1970s, the book, printed on newsprint-quality paper and filled with black-and-white drawings and photographs, “Our Bodies, Ourselves” was, in that first edition, “about demystification, about understand how our bodies worked,” said Judy Norsigian, executive director of the organization Our Bodies Ourselves, who will speak at New College of Florida Tuesday on the topic of advocacy and activism, particularly in the areas of reproductive health and justice.