Even as gay culture continues to become more mainstream in American society, the crusades of “family-friendly” organizations to keep such themes away from children are gathering steam. In recent years, a number of children’s books have dealt with gay themes, either directly or indirectly, in an effort to find factual, non-threatening ways to introduce the subject to kids who might otherwise grow up with the same prejudices as past generations. But the authors of such books are finding that they are a tough sell to librarians, who are afraid of the backlash from right-wing pressure groups.