In WordPress, you can write either posts or Pages. Pages are for content such as "About," "Contact," etc. Pages live outside of the normal blog chronology, and are often used to present timeless information about yourself or your site -- information that is always applicable. You can use Pages to organize and manage any content.
In addition to the generally required "About" and "Contact" Pages, other examples of common pages include Copyright, Disclosure, Legal Information, Reprint Permissions, Company Information, and Accessibility Statement.