Maybe it happens you want to find a post ID (or category or tag). For example you need it to select posts for one content block. So how can you find it?
1- Use a trick
Go to All Posts or Categories or Tags page. Now hover the post, category or tag you want. In below image post ID is showed. The procedure is the same for categories and tags.
2- Be more technical
Edit the post, category or tag you want. Now ID is visible in address bar. Look at below image.
3- Be more sophisticated!
Use a plugin for this purpose. We do not recommend you to use a plugin for this simple task but some people prefer it.
“Catch IDs”, “Show IDs by 99 Robots” and “Reveal IDs” are plugins designed for this purpose. Just install and activate them.