Editorial Note: This article is written with editorial review and topic relevance in mind.
Peoples is used when we talk about two or more. People is a collective noun. When we talk about a specific group of people, we consider it as singular and therefore, no need to add s.
True Crime Case Histories (Books 7, 8, & 9) 36
What is the plural of people person? He was always energetic and positive and he was a people person. A people person is someone who is outgoing and has good communication skills.