Cressida DowningHave you been following the recent fight for the Christmas number one? The 'surefire' winner - Joe McElderry, winner of The X Factor - has been beaten by an internet campaign to get the anarchic (and expletive-filled) 'Killing in the Name' by Rage Against the Machine to the top.

Despite being asked very nicely, the band couldn't resist letting fly with their not-safe-for-radio version when they performed on BBC Radio 5 last week. The clue might be in the lyrics: 'F*ck You, I won't do what you tell me'...

But what does this have to do with writing? Well, two things really. One is that the public are not always catered for and rebellion can take surprising forms. The campaign to get 'Killing in the Name' (a song first released nearly 20 years ago) to number one was launched on Facebook, and the public responded online, downloading the track in their hundreds of thousands. It always pays to have an online presence.

The other is about the language. Do you swear in your writing (I assume most of you have sworn at some point whilst writing!) and is it advisable? The answer, as usual, is that it depends. Make sure that if your characters are swearing, they are doing it within the context of their time, place and general demeanour. If your main character is a man in his seventies living in Victorian London, he is unlikely to sound like something off an Eminem track.

But there is also a danger in not allowing your characters to swear. If your hero has just realised he's lost £3m on the roll of the dice, he is unlikely to respond with 'darn it all to heck' or anything else quite so mild-mannered!

As for swearing in the narrative, even if this is in the context of a character's voice, this is less advisable. You will alienate some readers immediately, and it's probably not necessary.

It goes without saying that swearing in your covering letter is always a no. Unless you are a successful American rock band unexpectedly swept to a number one spot!

Good luck with your writing,

Cressida
(editorial consultant)