There is no such thing as a 'best' font or size. Different publishers have their own standards, which can entail the use of different fonts for headings, body text, footnotes, captions, etc, and these and the point sizes can vary according to the publication format. If you like the font and point size in your link, simply find one that matches/approximates it.

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Cheers,
Paul Edstein
[Fmr MS MVP - Word]