I am new to all this so my ignorance may get in the way.
I inherited a WP Blog with Custom Post Types. There are 4 Custom Post Types, out of which 2, Books and Magazines, have the same fields: Custom_Post_Type_Name, Author, City, Address, Categories, Tags, Date.
I need to merge these two Custom Post Types into one. More specifically, I need to merge Books into Magazines and rename this new merged Custom Post Type to Publications.
Can someone please show me how to do this?