Semiconductors and Nanostructures: An Introduction provides a rigorous yet accessible introduction to semiconductor physics. Bridging the gap between introductory quantum mechanics and advanced semiconductor courses, it offers a compact yet comprehensive overview that empowers students to understand and engage with both fundamental concepts and real-world applications. This textbook is an indispensable resource for undergraduate and graduate students in physics and engineering, particularly those preparing for advanced studies or careers in semiconductor technology. It is a practical, pedagogically refined resource for both coursework and self-study. Key Features: Comprehensive yet concise coverage of core principles and advanced topics Systematic and didactic presentation of the needed concepts in statistical physics (such as the "Fermi level"). Clear explanations of challenging concepts, supported by illustrative examples. Research-connected problems linking theory to real-world applications. Deeper focus on semiconductor growth and defects than typical introductory texts.