This article examines the development and characteristics of guidelines for non-sexist/inclusive language, a genre of texts that has evolved since the 1970s to promote gender equality in language use. These guidelines, which vary in format and scope, aim to address the representation of individuals in language and advocate for gender balance through practical recommendations. The article defines these guidelines and explores typical elements found in them. It also discusses the variance in content and format among guidelines, which can range from brief recommendations to comprehensive books and may address one or multiple languages. The concept of inclusion in such guidelines has expanded beyond gender to encompass various groups of people, aspects of communication, and broader contexts. The article traces the development of the term “inclusive” in guidelines and discusses how different guidelines define and approach inclusivity. It concludes by emphasizing the evolving role of these guidelines in adapting to changing social, political, and linguistic contexts, and their potential to address multiple dimensions of inclusion in the future.