There are several pages on the main site that can help you when editing character, place, or event pages, or with adding citations or categories. A good place to start is the Manual of Style, which can be found under the Community link in the top navigation bar. There's also a To Do List there that may offer you a place to start your editing process. If you have specific questions, please post them in this sub-Forum so that the discussions can benefit all of our editors.
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