Mark Baker is a notable figure in the field of software development and technical writing. He is recognized for his contributions to the XML community, particularly through his work on XML Schema and DocBook. His expertise has helped shape standards and practices in the industry. In addition to his technical work, Mark Baker is also known for his advocacy of REST (Representational State Transfer) principles in web architecture. He emphasizes the importance of using web standards to create scalable and efficient systems. His insights have influenced many developers and organizations in adopting best practices for web services.