This document presents a comprehensive overview of authentic assessment, emphasizing its role in evaluating students through real-world tasks that demonstrate the meaningful application of knowledge and skills. It compares traditional and authentic assessments, introduces non-test assessment methods, and highlights the importance of transversal competencies and 21st-century skills. Drawing from educational theorists and DepEd guidelines, it offers practical frameworks such as GRASPS and outlines essential features and guidelines for implementing effective performance-based assessments in contemporary classrooms.