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"Learning Electrical Circuits from Zero Basics: Diagram Reading, Installation and Maintenance" is guided by the market demand in the electrical field, and arranges the learning content of electrical circuit diagramming and maintenance skills in accordance with relevant national professional qualification standards. Combining the training characteristics of the electrical industry and readers' learning habits, the knowledge and related skills of electrical circuit diagramming, installation and maintenance are divided into 17 chapters, including the basics of electrical circuit diagramming, reading of basic components, reading of basic electronic circuits, reading of practical unit circuits, control relationships of electrical circuits, laying of electrical lines, and wiring of electrical lines. And installation, common control circuits and wiring for motors, common control circuits and wiring for PLC, common control circuits and wiring for frequency converters, wiring and installation of distribution lines, wiring and installation of lighting lines, wiring of smart home systems, maintenance and debugging of power distribution and lighting lines, air conditioner circuit maintenance, electric bicycle maintenance, industrial and agricultural machinery equipment maintenance. This book is mainly intended for on-the-job electricians and job seekers. It can also be used by teachers and students in vocational colleges, training schools and related training institutions, as well as the majority of electrical and electronics enthusiasts.