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This channel includes BASIC SKILL DEVELOPMENT for "Web Development", videos and related book links.

In case of PHP, its advanced levels are Frameworks such as MVC (Model View Controller), etc. such as Codeigniter, Cakephp, Laravel, Symfony, Yii, etc. They use PHP syntax at an advanced structured level. To work on them basic PHP knowledge in books is a must.
 
In case of Javascript, its advanced version is Jquery. It has famous frameworks ReactJS, VueJS, AngularJS, etc. which use readymade libraries to code. All of these follow a basic Javascript coding pattern as shown in books. 

Similarly WordPress is a CMS (Content Management System), other famous CMS are Wix, Squarespace, Shopify, etc., however functioning of all is similar in many ways. 

Ziscom books can be found here: https://www.amazon.com/s?k=ziscom-book