It's the right thing to do, and with market 100000000000 USD a year for accessible content, new laws and new technology, you can not ignore accessibility. With this book you will learn the basic principles and techniques for developing accessible HTML, audio, video, and multimedia content. You will learn how to: Use of best practices of accessibility to develop accessible web content Build testing into projects to improve outcomes and reduce costs Create high quality alternative representations for your audience Add accessibility features to external media like PDF and Flash Negotiations plains accessibility accessibility standards Apply principles of new technologies as they emerge