UK grammar question regarding middle intial

Is it common, as it is in the US, to put a period after a middle initial on formal documents.

For example, if I were to publish a book, would I write:

Autumn C. Lastname

or

Autumn C Lastname?

Thank you!

I wouldn't.  But I'm no expert... I've just lived here a really long time, and am generally observant of things like this!
(also, just for extra info, I'd call it a 'fullstop', not a 'period'.)

The grammar experts will be along shortly, I'm sure!

The common UK usage is to not put a period after initials and abbreviations. It took me a while to get used to it, and now I can't stop doing it.

Thanks Tracey and Geeta!

Yes, my DH keeps saying, "It's a full stop, not a period."  But ya know, old habits. I'm old, and it's my habit.

I thought they didn't use fullstops/periods after initials but wasn't sure. Don't know that I'll get used to that anytime soon either!

Thanks again.

I don't think it matters too much so long as you are consistent. It may be more common to omit them, but it's not incorrect to use them. All the books I have (published in UK) utilise the full stop for initials: F. Scott Fitzgerald, E. M. Forester, etc. Although my boyfriend is saying this would be more common on a book rather than everyday use. (I work in publishing so I tend to only see it on books!)

Using full stops after common abbreviations such as Mr and Mrs is falling out of habit, but again, it's still not wrong to use them so long as you are consistent.

I thought the traditional rule was not to use full stops for abbreviations which ended in the same letter as the full word being abbreviated. E.g. Mr is short for mister and both end in 'r' so you wouldn't use a full stop. Having said that, most abbreviations do seem to fall in that category. And the trend does seem to be less use of the full stop.

Yes, that is the rule. But common usage has evolved to include all abbreviations and initials.

I'm english and I've absolutely no idea what the correct way would be!