How to Edit a WordPress Post
When you are writing WordPress blog posts, you are your own editor and have full control of what you write, when you write it, and how you write it. You can always go back and edit previous posts to correct typos, grammatical errors, and other mistakes by following these steps:
Find the post that you want to edit by clicking the All Posts link in the Posts menu.
The Posts page opens and lists the 20 most recent posts you’ve made to your blog.
You can filter that listing of posts by date from the Show All Dates drop-down menu at the top of the Posts page. For example, if you choose December 2012, the Posts page reloads, displaying only those posts that were published in the month of December 2012.
You can also filter the post listing by category. Select your desired category from the View All Categories drop-down menu.
When you find the post you need, click its title.
The Edit Post window opens. In this window, you can edit the post and/or any of its options.
You can also click the Edit link that appears beneath the post title on the Posts page.
If you need to edit only the post options, click the Quick Edit link. The post options open, and you can configure post options such as the title, status, password, categories, tags, comments, and timestamp. Click the Save button to save your changes without ever leaving the Post page on your Dashboard.
Edit your post; then click the Update button.
The Edit Post window refreshes with all your changes saved.