CHAPTER 9 The Next Steps for Web Typography
are quite a few reference websites for writers that provide a good starting
point for us all, for instance The Chicago Manual of Style Online^5 , The
Oxford Guide to Style^6 or the more specific UK Government Digital Service
content principles^7. And every Web typographer should write an essay or
an article at some point in their career — at least to change perspective and
learn how content conception works.I also encourage you to write. You may not be Tolstoy, but shared thoughts can
inspire friends you haven’t met yet.— Jeffrey Zeldman, Offscreen #3, 2012.5 http://www.chicagomanualofstyle.org/home.html
6 http://smashed.by/oxford-style-guide
7 https://www.gov.uk/designprinciples/styleguidenon-breaking space
narrow non-breaking
en-quad
em-quad
en-space
em-space
three-per-em space
four-per-em space
six-per-em space
figure space
punctuation space
thin space
hair space  
medium mathematical
A table of spaces available in HTML.