This new book is written by a Polish priest who is championing the importance of a good sex life. The book, titled “Sex as you don't know it: For married couples who love God,” has been flying off the shelves in Poland.
Another point the article mentions is: “But few if any priests have taken Knotz's explicit approach to sex — including everything from the theological to the practical, from oral sex to contraception and the number of children a Catholic couple should have.”
The article also mentions that some translations are in the works, pondering over English, Italian and Slovakian translations.
More info can be found here.