The document discusses open science and open access. It provides examples of open science like open access publishing, open notebooks, prepublication data release, and open source software. It discusses three aspects of open science: cost, restrictions, and timing. It discusses the costs of publishing, creative commons licenses, and examples of organizations that promote open access like the Public Library of Science (PLoS) and how they circulated an open letter to encourage open access. Overall, the document discusses the history and concepts of open science and open access.