This book has been written covering the syllabus of Discrete Circuit Design/ Analog Circuits of B.Tech Programmes of various branches such as Electrical and Electronics, Electronics and Communication, Computer Science and Engineering etc. It covers the fundamentals of circuit design and the functions of intricate components of an analog circuit. It explains the fundamental concepts and serves as an excellent guide for an introductory course on basic circuit design. It not only explores the theoretical and practical aspects of analog circuitry, but also gives a glimpse of the experience and classroom interaction of the author. The coverage is sufficiently in-depth to allow the reader to progress smoothly onto higher level text books.