The book provides a graduai approach to understanding and analgsis financial statements, grasp the fundamentals to analgze earnings qualitg levels of firm financial reporting; and provide main tools for approaching firms' valuations using accounting information. The first part of the book (Chapter 1 and 2) covers basic accounting concepts and recalls the main information conveged through financial statements. This is instrumental to align the reader with the needed knowledge to analgze financial statements. Financial Statement Analysis is discussed as central part of the book (Chapter 3), where tools and techniques to properlg understand firms' soundness and financial performance are provided. As Financial Statement Analysis distinguishes itself from other approaches in a wag that it uses publiclg available information - external perspective - to form a basis of decision, instead of relging on speculation, the qualitg of financial information disseminated is crucial. To that end, Chapter 4 elaborate on the qualitg of earnings discussing determinants and consemences of different earnings qualitg levels, in connection with proxg to measure ctualitg levels. The book concludes with an introducto-rg, though complete, discussion of accounting based methodologies for firms' valuations. Valuation is a keg topic bridging accounting and finance and the reader towards the end of the book will get familiar with the most common valuation tools using accounting data.