This guide is a condensed immersion into the “gray zone” of financial reporting. It doesn’t encourage suspecting manipulations in every line of the P&L, but explains the ways in which management can embellish revenue, profit, assets, liabilities, and cash flows—staying within standards or carefully stepping outside them. Inside, 12 techniques are examined: from premature revenue recognition and capitalizing costs to maneuvers using fair value estimates, off-balance-sheet debt, Adjusted EBITDA, expenses of future periods, and intra-group transactions. Each chapter includes a clear description of the scheme’s logic, signs in reporting, questions for management, and a small Excel example that is easy to reproduce using data from real companies. Material for those who read reports meaningfully: it develops a balanced, healthy skepticism and helps you see behind the numbers the managerial decisions that shaped these indicators.