This document provides an overview of accessibility for online courses and documents. It discusses legal and ethical obligations to make courses accessible to all learners, including those with disabilities. Specific types of disabilities that should be accommodated include visual impairments, physical disabilities, learning disabilities, deafness or hard of hearing, and color blindness. Guidelines for accessibility include the Web Content Accessibility Guidelines and Section 508 compliance. The document provides tips for making Word documents, videos, images, PDFs, and websites accessible and includes resources for checking accessibility.