p8 Use HEADING LEVELS 2, and 3. Rarely 4. Never 1, 5, 6. Use equal signs in front and behind the text. The number of signs is the level.
p9 Wikipedia:Edit summary legend abbreviations for the edit summary.
p11 Wikipedia:Purge for when an edit save doesn't display right, and refresh doesn't help.
p13 Edit lock template (the following without the tl:): {{tl:Wikipedia:Edit lock}} Asks editors not to edit for awhile. If you see this for a few hours with no edit, you can delete it. It isn't binding (ie, others can still edit).
p14,15 Types of markup:
double curly brackets are templates; double square brackets are an internal link.
words1|words2 inside double square brackets is a piped link. words1 is the actual page name, words2 is what the reader sees.
single square brackets around a URL are external links.
text possibly with a URL between ref and /ref inside less than greater than characters (I'll call this LG) and references / inside LG are for footnotes.
like the above, but other words than ref: blockquote text /blockquote, and math numbers and symbols /math.
A comment that is visible only in edit mode goes between less than!-- and --greater than.
tables are created by lots of stuff separated by pipe symbols inside single curly brackets.
lists are created by * (bullet) and # (numbered).
Category:Name inside double square brackets creates a category link at the bottom of the page.
To create citation needed ^{[citation needed]} For info, see Template:Citation needed.
p23 Finding a known problem to work on: WP:PNA; WP:RFE; CAT:UP; CAT:M.
p24 Be careful about spelling: WP:SPELLING; WP:ENGVAR.
p25 Check WP:Alternative outlets when an article is not appropriate for Wikipedia.
p27 Citation not needed for:

1. In the lead section, which should be a concise overview;
2. In a section that summarizes a more detailed article. Put a link just below the heading like this: Main article: Link-to-main-article.
3. There's an internal link to another article that supports what you say;
4. If the info is documented in a section at the bottom, eg, if a book in a bibliography is documentation for the info. p29: But you must add a citation for controversial text.
   

p32 Three ways to cite sources:

• Embedded citations (see WP:ECITE)
• Footnotes (see WP:FOOT, Help:Footnotes, and Pickleball)
• Harvard referencing (see WP:Harvard referencing)
  

p42 For books: Special:Booksources and for multiple references to the same source, add a citation template for page numbers: Template:Rp.