Does one need to put a space between initials of the first and the second names. Which one is correct: "Sincerely, J. D." (where J. D. means John Doe) or "Sincerely, J.D."?


Yes, one puts a space there. Some people might leave out the space if they also leave out the periods, as in "Sincerely, JD". In that case, the space could be considered optional, although "Sincerely, J D" is also fine. But as soon as you use the periods, the space is a must.

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    You may or may not be correct, but without supporting references or data on usage nobody can judge. For example, I think your answer is incorrect and it's just a matter of style. Prove me wrong. – David Apr 21 '17 at 22:04
  • I wouldn't be so categorical - see, for example: thepunctuationguide.com/style.html – michael.hor257k Apr 21 '17 at 22:06
  • And David, I admit I was merely stating my vantage point. – EditingFrank May 21 '17 at 11:54

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