9. Spaces:
Modern style is to use a single space at the end of a sentence, not two. Also, most punctuation marks (e.g. commas, full stops, question marks) are not preceded by a space.
10.Tables:
Set table text one or two points smaller than the main body text and in a sans-serif font such as Arial or Verdana. Avoid vertical lines as they tend to add unnecessary clutter.
Armed with these simple guidelines, your business writing should be well received every time. Good luck!

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