Changing student demographics, globalization, and flows of people resulting in classrooms where students have variable linguistic repertoire, in combination with new technologies, has resulted in new definitions of what it means to be literate and how to teach literacy. Today, more than ever, we need frameworks for literacy teaching and learning that can withstand such shifting conditions across time, space, place, and circumstance, and thrive in challenging conditions. Critical literacy is a theoretical and practical framework that can readily take on such challenges creating spaces for literacy work that can contribute to creating a more critically informed and just world. It begins with the roots of critical literacy and the Frankfurt School from the 1920s along with the work of Paulo Freire in the late 1940s (McLaren, 1999; Morrell, 2008) and ends with new directions in the field of critical literacy including finding new ways to engage with multimodalities and new technologies, engaging with spatiality- and place-based pedagogies, and working across the curriculum in the content areas in multilingual settings. Theoretical orientations and critical literacy practices are used around the globe along with models that have been adopted in various state jurisdictions such as Ontario, in Canada, and Queensland, in Australia.