A Textbook Of Applied Electronics is a comprehensive guide for undergraduate students of Electronics and Communications Engineering. The book comprises chapters on structure of solids, DC resistive circuits, PN junction, PN junction diode, rectifiers and filters, hybrid parameters, power amplifiers, sinusoidal oscillators, and time base circuits. In addition, the book consists of several chapterwise questions and detailed diagrams to understand the complex concepts of applied electronics better. This book is essential for engineering students preparing for competitive examinations like GATE and NET.