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The Pearl Theme also supports blogs. You can set up a custom blog page. You can also have custom sidebars on the blog.
Besides this, the Pearl Theme is compatible with the WooCommerce plugin, so you can have an e-commerce shop on your website.
You can also have a regular blog on your website where you (or anyone with admin/author rights) can put up posts.
Note: Blog posts can be published from the WordPress admin area. Only someone with admin or author rights can put up blog posts.
You can assign any page you create as the start page of your blog by clicking on Settings > Reading > Static Front Page and selecting the page in the Posts page drop-down list.
WooCommerce is the most popular e-commerce plugin for WordPress. Now you can have a shop with all e-commerce features on your WordPress site.
Before you start adding products, please go through the WooCommerce plugin settings and specify everything you need for your shop.