A manual on sex and pregnancy, which was banned from sale in the UK in the mid-18th century, is to be auctioned in Edinburgh.
Aristotle's Compleat Master-Piece, which first appeared around 1680 and quickly became widely popular, offers various ideas on sexual relationships and how to conceive. It remained a forbidden text until the ban was lifted in the 1960s.
A book specialist at auction house Lyon and Turnbull told BBC the book did not feature anything that would be considered "dirty" in society now.
Cathy Marsden said: "It was very popular. It was probably the most printed text of its kind and it went through a lot of editions."
"It's fascinating reading. It tells an amazing story about the changing perspectives on sex," she added.
An edition printed in the 1760s is expected to fetch up to £400.
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