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No MWE on this occasion, because it's a very general question! Is there any way to create a LaTeX document which prints out all the available characters (eg letters, numbers, old-style numbers, Greek letters and special characters etc) in any specific font set? This would include, regular, bold, italic, bold italic and small capital versions etc. If I could do this, I might be able to anticipate problems arising from the use of a specific font rather than having to react to them!