Here is a new translation from the Latin of the famous encyclical of Paul VI affirming the dignity of marriage and the procreation of children.
It includes an essay by one of the foremost authorities on Humanae Vitae, Janet Smith, who explains the beauty of this document and examines the disobedience the encyclical created when it first was released.
A much needed resource for the never-changing truth about contraception and married life. ~57 page booklet.