This book provides a compact and practical presentation of microelectronics circuits for a one-semester introductory course. Contrary to textbooks that are written for comprehensive two-semester electronics courses, the focus of this book is on the basic concepts and immediate discussion of application examples to instill more interest. The theoretical concepts are introduced by explaining the methods to analyze elementary electronic circuits with design considerations, design procedures, and simulation examples.With this approach, students are prepared early to design and measure simple electronic circuits in the laboratory. This is an exciting aspect that not only motivates students but also enables a well-rounded learning experience.