Mark has edited a variety of texts for me over the past ten years—from blog posts for a general audience to scholarly articles and edited volumes. He is a great editor with a great sense not only for language, but also for different audiences and their needs. Mark does not hesitate to provide critical feedback and my texts have greatly benefited from this. His questions and his attention to precise wording, formatting detail, and consistency always added clarity to my prose and helped me sharpen my arguments.