This document provides an overview of posting data to a server using AJAX. It discusses using the POST method for destructive operations that change data on the server, such as saving a blog post. It describes how to post data by serializing a form with the serialize() method in JavaScript and receiving the data in a controller file. Examples are given of passing individual values when posting. The document was prepared by trainees of Baabtra as part of a mentoring program and includes contact information for Baabtra.