March 5: Doubleday Echo Books, PW, Jan. 5, 1965, at 320:
A new series consisting of books in all areas of Catholic interest, selected for their popular writing and broad appeal in the Catholic market. The format will be similar to that of the Anchor and Image Books. They will all have handsome four-color covers. The prices will be $.75, $.85 and $.95. It is planned to issue 10 titles each spring and 10 each fall. Among the first 10 coming out this March are: “The Heroes of God,” by Henri Daniel-Rops, $.75; “Crown of Glory: The Life of Pope Pius XII” by Alden Hatch and Seamus Walshe, $.85; and “What the Church Teaches” by Monsignor J. D. Conway, $.95.
Ad, PW, Feb. 8, 1965, at 8-9 (two-page spread describing the series, showing the first 10 titles with photos, and announcing the release date as March 5).