Start with creating categories Posts -> Categories
Posts -> Add New
Fill in the details: content, featured image and assign featured image.
Create page Pages -> Add New
- Create blog with Visual Composer
Switch to Visual Composer and choose Bevettet Blog
Fill in the details: enter categories you would like to use separated with commas and set the the rest of the settings.
2. Create blog with Templates
Assigne template to a page you have just created ie. Blog Grid or Blog Rows and save, once you do that you will have Blog Settings at the bottom of the page which lets you set categories and post per page.
What is the difference? Well there is not much of a difference. Depending on your use case you may want to use the VC elements when building your page with Visual Composer. You cannot go wrong with any of theme.
There are additional settings in Theme Settings -> Blog