Mr. or Mr ?

[Scribble]

I'm working on a story and one of my characters is called Mr. Cook.

However, I can't figure out if I should write "Mr. Cook" or "Mr Cook"... the period looks strange to me within the story, as it is often close to periods ending sentences.

I've been trained for all my years to always put the "." after Mr or Mrs. I've never written anything where someone was Mr or Mrs.

What do you guys do?

 

[Steerpike]

If I'm not mistaken, the American rule is to use the period, whereas the British rule leaves it out. I'd adopt the style of the market you are submitting to. If you want to go with an American publisher, use that style.

 

[Ireth]

I think it might be a cultural thing. I use a period, but I've seen books where it's omitted. All my books are packed in boxes right now, or I'd find one to get proof.

EDIT: Ninja'd by the Feline Overlord! Steerpike is correct, the British leave it out. I was thinking of Harry Potter when I was writing that.

 

[CupofJoe]

As a brit... I was taught that the correct form when hand written is "Mr", when typed it is "Mr."
Mind you they were French and Belgian Nuns doing the teaching...

 

[Asterisk]

In school, I learned Mr. and Mrs. Though I admit, it's befuddled me a few times, too!