School librarians perform a critical and frontline role in defending equality, diversity, inclusion, and intellectual freedom (EDIIF) within their school communities. This comprehensive volume invites readers to learn from the experiences of school librarian leaders from around the globe in order to find inspiration, support, and strategies to continue promoting EDIIF. Each chapter addresses a particular way to take action. Bringing exemplary practices from Australia, Croatia, Ecuador, Germany, Indonesia, Malaysia, Nigeria, South Africa, Türkiye, the UK and US, chapters cover topics such as how to best serve immigrant and refugee students; how to celebrate readers and reading LGBTQIA+ books and authors; how literacy is promoted within inequitable educational landscapes; how diversity and intellectual freedom are supported through book awards and social media; and how librarians respond to changing social and political environments to ensure equity.