"Introduction to Algorithms" is a widely used textbook that provides a comprehensive overview of algorithms, which are step-by-step procedures for solving problems. Authored by Thomas H. Cormen, Charles E. Leiserson, Ronald L. Rivest, and Clifford Stein, the book covers a range of topics, including sorting, searching, and graph algorithms, making it suitable for both beginners and advanced learners. The book emphasizes the importance of algorithm analysis, helping readers understand the efficiency and performance of different algorithms. It includes mathematical concepts and techniques, such as Big O notation, to evaluate time and space complexity, ensuring that readers can apply these principles in real-world programming and computer science scenarios.