There are many types of editors. With all the different kinds of editing that exist and all the various words to classify varieties of editing and editors, it can be difficult to know exactly what certain terms mean. It is definitely challenging for authors in need of editing services to determine what differing sorts of editors do or what varied categories of editing entail. Even for editors, it can be difficult sometimes to distinguish exactly what various editors do. In this booklet, we are going to examine three distinct kinds of editors, specifically copyeditors (also written as "copy editors"), developmental editors, and substantive editors.