There are times when you have two similar categories that you want to merge together. When I say merging, it means:
1. Move all the posts from one category to the other (the one you want to merge into).
2. Delete the duplicate category.
3. Add a URL forwarder to redirect the previous category URL to the new URL.
Here is how it can be done:
Custom Post Type was introduced in WordPress 3.0 to allow the users to define different post type within a blog. For example, if you are a chef looking to open new cooking classes and also to share your recipes with others, you can define a post type call “Classes” where you announce the availability of new cooking class and another post type call “Recipe” and share your recipe with your readers.
WordPress doesn’t come with an easy way for the normal users to create custom post type, but luckily there is a useful plugin for that.