O'Reilly Media is a well-known publisher and media company that specializes in technology and business content. Founded in 1978 by Tim O'Reilly, the company is recognized for its books, online learning platforms, and conferences that focus on topics like programming, data science, and web development. The company is particularly famous for its distinctive animal-themed book covers and its commitment to open-source software. O'Reilly Media also offers a subscription service that provides access to a vast library of resources, including videos, tutorials, and live training sessions, catering to professionals and learners in the tech industry.