This document provides an introduction to management accounting. It discusses the evolution of accounting from ancient times to the modern era. It defines financial accounting, cost accounting, and management accounting. Financial accounting records and reports historical financial data externally, while management accounting provides forward-looking analysis and non-financial data internally to support decision making. Key differences between financial and management accounting are that management accounting focuses on performance analysis, future projections, non-monetary factors, and precision is less important than usefulness for managers.