This textbook is providing the students and professors with a variety of properly selected step-by step worked examples in order to assist them of understanding a power electronics course. Each chapter of this textbook consists of a number of worked examples which extend the reader's experience in problem solving and to help develop a deeper understanding of the subject. The majority of the 200 worked examples in this textbook follow a logical sequence, which is an attempt to demonstrate the step-by-step process of a power electronics converter design. Indeed, the purpose of this textbook is to present a more exciting type of questions and show how the theory in power electronics is related to real world problems.