For more than a decade the independent Roman Catholic publishing house of Herder & Herder of New York has been the most adventuresome in its field. Four years ago it won praise, and in church circles a degree of notoriety, for the erudite but controversial "Dutch Catechism.'' That ruckus will seem a mere parlor game compared to the brouhaha that is likely to greet Herder's latest effort, a show-and-tell encyclopedia of sex called The Sex Book.
The $9.95 explicitly illustrated volume, scheduled for U.S. publication early this summer, has already sold 30,000 in a German edition published last year by an...