Sex: it’s all around us, but many of us still have questions. Relationship coach and author Susan Quilliam, who updated the 1970s classic, The Joy of Sex, talks us through the best sex guides and also some of the groundbreaking books that broke taboos and paved the way to more open-minded sexual attitudes.

A one-size-fits-all approach to sex education cannot function in a globalised world, says professor of education and history, Jonathan Zimmerman. He picks the best books on sex education.

For thousands of years, human societies have tried to regulate sexual activity. The author of Sex and Punishment tells us why this should be so, and how what’s permissible has varied according to time and place.

The roots of our (generally) open attitude to sex lie not in the sixties but the 1760s, says the historian and author of The Origins of Sex, who explores this earlier sexual revolution through its literature.

The author, critic and creative writing professor tells us about the battle to establish gay fiction. He recommends five novels where beautiful writing and gay themes come together.

Professor Tim Birkhead is one of the pioneers of spermatology. He explains how promiscuous females can be selective about sperm, even after multiple inseminations

Research shows that middle-aged sex is the best of people’s lives, says journalist and author Kate Figes. She picks the best books on sex and marriage.

The poet, novelist and author of memoirs explores parallels between faith in the divine and commitment to a worldly erotic passion, and books that show you can have purity within licentiousness