Abstract
The notion of groups is discussed in this article. Groups are a vast concept that are not just relevant to people, but also to other living entities than humans. When people have similar thoughts or experiences on how to meet their needs, group formation might occur. This article's objective is to familiarize the reader with the concept of groups and to explain how one can form a general description of groups by first comprehending the formation process, the formation of groups, the characteristics and types of groups, and other topics related to familiarizing oneself with and comprehending formal groups as well as the behavior of individuals within those groups.