SonarQube is a leading platform for continuous code quality that allows developers to write clean code, detect bugs across 20+ programming languages, and integrate with DevOps tools like Jenkins. The document discusses getting started with SonarQube by setting up the Windows service, MySQL database, security, plugins, rules, quality profiles, and quality gates. It also covers project management, remote access, using the SonarQube scanner for MSBuild, and integrating SonarQube with Jenkins for continuous code quality.