This document provides an overview of a forensic masterclass presentation focused on analyzing the quality of earnings reported by companies. It discusses how aberrations in earnings can lead to major losses for concentrated portfolios and reputational losses for institutions. Several examples are presented showing how companies may manipulate key metrics like EBITDA, ROE, and cash flows through changing accounting policies or under-reporting items to selectively manage earnings. The presentation aims to educate investors and promote more rigorous analysis of company financials and narratives.