This book gives a straightforward introduction to techniques of integration, which is one of the most difficult areas of calculus. It is well known that the only way to learn calculus is by solving problems. About 300 completely worked examples are used to introduce methods of integration and to demonstrate problem-solving techniques. The sections are written as self-guided tutorials. Each chapter opens with appropriate definitions and formulas followed by a lot of solved problems listed in order of increasing difficulty. Studying and solving these problems improves understanding of techniques of integration and helps students to pass exams in the fastest, most efficient manner available.