This article reviews Klaus Krippendorff's academic life and achievements. By using citation data from Google Scholar and Web of Science, we can identify his major works, different research fields, and academic influence. Citation data about some eminent communication scholars shows that Krippendorff has achieved a high ranking among them. This article tries to construct an academic conceptual network of his works, and points out the characteristics of his research works as well as the reasons for his success.