WordPress is built around two basic concepts: Posts and Pages
Posts
-
schedule
Typically blog entries
-
sort
Listed reverse-chronologically
-
label
Can be categorized and tagged
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update
Good for regularly updated content
Examples
News
Blog Articles
Updates
Announcements
Pages
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push_pin
Used for static content
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history_toggle_off
Content that doesn't change frequently
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block
Cannot be categorized or tagged
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link
Often linked in navigation menus
Examples
About Us
Contact
Services
Privacy Policy
Even if you don't need a blog, Posts can be used for "Latest News" or company updates