This document explores the open knowledge landscape, discussing various open initiatives including open educational resources (OER), open online courses (MOOCs), open data, open access scholarly works, open source software, and open government. It notes that the open education movement is rooted in expanding access to high-quality education as a human right. Various open licenses, definitions, policies, and projects related to these areas are referenced. Challenges to openness like lack of diversity and inclusion in open communities are also acknowledged. The document advocates for sharing knowledge more openly in order to fulfill a moral duty to make privileges like education available to all.