George R. R. Martin Wiki:Manual of Style

These are a few guidelines you should keep in mind when editing. Feel free to improve them.

Spelling

 * Articles should be written in American English.
 * For quotations, use "double quotes" and 'single quotes' for nesting quotations; thus "quotations 'within' quotations".
 * Write formally. Avoid using contractions such as don't, can't, won't, would've, they'd,.
 * Avoid using slashes to join words. Instead, spell it out.
 * With the exception of names, all article titles, headings, and sections should use sentence case and not title case.
 * All articles that cover in-universe material must be in past tense.

Links

 * The following should be linked: dates, places, people that have a major connection with the subject, technical terms, etc.
 * Generally, there should not be duplicates of the same links. However, if you have made a link in captions or the infobox, it is a good idea to make the same link in the body of the article.
 * Make sure you link to the intended article rather than the disambiguation page