This document provides an overview of the roles and certifications available for assurance professionals working with information systems. It discusses why IS auditing is important given regulations like Sarbanes-Oxley that require verifying system controls. Common certifications include CISA, CISM, and CGEIT from ISACA, which focus on auditing, security management, and IT governance respectively. The CISSP from (ISC)2 demonstrates broad security knowledge, while the GIAC GSNA tests systems and network auditing skills. Obtaining certifications provides credibility, ensures competence, and allows professionals to efficiently add value through activities like risk assessments, security evaluations, and enhancing audit effectiveness.