In this brief overview, we delve into the world of library consortia. As stewards of knowledge and resources, understanding the dynamics of these collaborative entities is crucial in today’s evolving library landscape. A library consortium is a group of Libraries who partner to coordinate activities, share resources, and combine expertise. This paper is mainly highlights for consortia definition, needs, features, functions, models, prerequisite for library consortia formation, library consortia in India, consortia may focus on and challenges of library consortia.