Paul Horowitz is Professor of Physics and of Electrical Engineering, emeritus, at Harvard University, where he originated the Laboratory Electronics course in 1974 from which emerged 'The Art of Electronics.' In addition to his work in circuit design and electronic instrumentation, his research interests have included observational astrophysics, X-ray and particle microscopy, and optical interferometry. He is one of the pioneers of the search for intelligent life beyond Earth (SETI). He is the author of some 200 scientific articles and reports, has consulted widely for industry and government, and is the designer of numerous scientific and photographic instruments. Winfield Hill is by inclination an electronics circuit-design guru. After dropping out of the Chemical Physics graduate program at Harvard University, and obtaining an E.E. degree, he began his engineering career at Harvard's Electronics Design Center. After 7 years of learning electronics at Harvard he founded Sea Data Corporation, where he spent 16 years designing instruments for Physical Oceanography. In 1988 he was recruited by Edwin Land to join the Rowland Institute for Science. The institute subsequently merged with Harvard University in 2003. As director of the institute's Electronics Engineering Lab, he has designed over 800 scientific instruments. Recent interests include high-voltage RF (to 15\,kV), high-current pulsed electronics (to 1200\,A), low-noise amplifiers (to sub-nV and pA), and MOSFET pulse generators.

• List of tables; Preface to the Second Edition; Preface to the First Edition; 1x. Real-world passive components; 2x. Advanced BJT topics; 3x. Advanced FET topics; 4x. Advanced topics in operational amplifiers; 9x. Advanced topics in power control; 15x. Sensors; Name index; Parts index; Subject index.

'The Art of Electronics, together with The x-Chapters, have achieved pedagogical perfection by bending conventional approaches to knowledge transfer. The text is propelled by the authors' enthusiasm, a vast breadth of practical knowledge, and an innate sense of exactly what needs to be explained, detailed, or plotted to build true circuit intuition. The x-Chapters is packed with real-world details and deep-dives into advanced topics that often go unaddressed in standard curricula. The chapter on Sensors is alone worth the price of admission. It is a profound way to expand one's technical repertoire, yielding benefits over a lifetime and making The x-Chapters an essential companion to The Art of Electronics.' John Willison, Founder, Stanford Research Systems