Sex is the one subject guaranteed to illicit raised eyebrows, flushed cheeks and even an embarrassed giggle – and not just from teenagers. Adults can also be a little shy when it comes to sharing their bedtime habits. Yet one journalist has spent the last four years collecting over two thousand stories of what goes on behind the closed doors - and between the sheets - of America's homes.

Compiled into one toe-curling volume, The Sex Diaries Project: What We're Saying About What We're Doing by Arianne Cohen explores the sexual preferences and peculiarities of the young, the old, couples, singles and confirmed celibates.

Why are we so embarrassed about discussing sex? How do we differ from other sexually active people around the world? Could our own sex lives be more exciting if only we would discuss them with others? How do you respond when a friend decides to share a little too much information about their private lives?

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Arianne Cohen, author of “The Sex Diaries Project: What We’re Saying About What We’re Doing” (Wiley) and regular contributor to The New York Times, Elle, Marie-Claire and The Guardian