How should one write "one and two" in short form - 1&2 or 1 & 2? Are there any particular rules regarding this?

In context:

  • You may choose to do Information Technology Units [1&2/1 & 2] and then IT Apps Units [3&4/3 & 4] for VCE.

  • Chapters [1&2/1 & 2] of the book give the reader an idea of the protagonist's personality.

I had a look at this question and, whilst it had helpful and informative answers, it did not provide any detail on the usage of an ampersand to combine numerals.

  • I would have to say it's a matter of style. What looks best to you? Or does your employer favor a particular style guide? Personally, I don 't like it either way—it's too tight without spaces, and too loose with them—so I put spaces in, and then tighten the kerning to decrease the space. I don't know if you'd want to go to that bother. Jun 10, 2015 at 7:57
  • @BrianHitchcock To be honest, it's hard to say. I really can't decide! It's one of those interesting situations where, as you said, both options look, let's say, a bit iffy.
    – Dog Lover
    Jun 10, 2015 at 8:04
  • 1
    Well actually, that question does help because where the terms are separate words like Tate, Lyle, Marks, Spencer, there is a space. Where the whole thing is a name, like M&S or 1&1, there aren't spaces. With chapter numbers, each is separate, so the spaces are needed. But I would prefer to use and spelled out in that case, anyway.
    – Andrew Leach
    Jun 10, 2015 at 8:53
  • As @BrianHitchcock said, it depends on the kerning of the font used, and you can adjust even that.
    – stevesliva
    Jun 19, 2015 at 4:39


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