This page outlines the LibreTexts Project, which offers free access to customizable open educational resources (OER) aimed at lowering textbook costs for students. It features 14 interconnected librar...This page outlines the LibreTexts Project, which offers free access to customizable open educational resources (OER) aimed at lowering textbook costs for students. It features 14 interconnected libraries that enable instructors to adopt or remix texts for their courses. Supported by various educational organizations, LibreTexts fosters collaborative development of open-access materials to enhance postsecondary education.