jQuery is a popular term known to the web developers and web designers. We use various jQuery plugins to serve different purpose and functionality of a website. Nowadays, lots of jQuery plugins are available on the internet for almost every functionality needed. You can easily find a required plugin here “http://plugins.jquery.com/“. Web developers and designers tend to just download the plugin from the internet and use it in the web page to achieve the functionality. Very few of us need to write custom jQuery script blocks to do some special or customized functionality. Rather than writing scattered jQuery script blocks, it is always a better idea to create jQuery plugin to wrap them up in a method and use the custom jQuery plugin when needed! That keeps the web page clean and the script is more manageable. So let’s learn the basic concepts and anatomy of a jQuery plugin and how to write your own plugin.