Popular teenage novels contain hundreds of swear words and the most popular characters are the most foul-mouthed, a study has found.
Other categories, including sexual words, excretory words or other strong profanities, were less common.
In books aimed at the 9-11 age group swearing was milder and less frequent, with the two final books in the Harry Potter series containing six and 13 profanities respectively, including three “strong” swear words and ten mild words.
But one book in this category, Raven Rise from the Pendragon series, featured seven sexual words, described by researchers as "coarse" descriptions of body parts or sexual behaviour.
Full story at The Telegraph