ITIL is a framework of best practices for managing IT services that is used globally. It recommends a process-based approach and covers the full lifecycle of IT services, ensuring alignment with business needs. Following ITIL practices can help organizations improve service quality, reduce costs, and better meet requirements. Certification in the ITIL framework provides skills valued by employers and distinguishes professionals through process-focused knowledge. The current version, ITIL v3, offers enhancements like additional processes and a comprehensive knowledge management approach.