It is easy to filter and display WordPress posts, pages from specific categories, tags with Content Views.
Here are 3 simple steps:
- In the Filter Settings tab, the Advance section, select the first checkbox Taxonomy (Categories, Tags…)
- Select the taxonomies you want to get posts from, for example: Categories.
- In the Select Terms field, select the specific categories you want to get posts from.

Then Content Views will filter and display the posts from specific categories that you selected.
Best regards,