I think there was a wide gap between what was written in booklets like this, and what young people actually thought and believed. A bit like those articles you used to get in magazines and books recounting how a woman at home should spend her day doing domestic tasks - and in what order and other articles about combining working and running a household.
I was 18 in 1961 and at my convent boarding school, if we had ever seen or been given a booklet like this, we would have been hooting with laughter, reading snippets out and sending it up.
I cannot remember anyone my age at the time doing other than thinking that everything from necking onwards was a mutally enjoyable sport for both sexes.
Most women's magazines then, would have small discrete adverts from London Rubber, offering to send you a booklet about contraception and their - rubber - products. They did assure us it would be sent in a plain brown onvelope. I duly sent off for it and, yes, it did arrive in a plain envelope, which got passed around between my friends and was very pracical and educational.
Like most families, sex was not something ever discussed at home, but nothing negative was ever said and the only time my mother,elliptically, said anything on the subject. It was to indicate that it was something very enjoyable.