Electrical Trade Principles is a theoretical text that covers essential units of competency for the Certificate III in Electrotechnology Electrician qualification. Aligned with the latest Australian and New Zealand standards, the text references the Wiring Rules (AS/NZS 3000:2018) and follows the uniform structure and system of delivery as recommended by the nationally accredited vocational education and training authorities. Topics such as 'engineering mathematical fundamentals' are included to demonstrate the level of math knowledge that a student should develop, and more than 1000 illustrations convey to the learner various concepts and real-world aspects of electrical principles. A range of fully worked examples, review questions and trial exams support student learning. Electrical Trade Principles, especially when packaged with the corresponding Practices text, has strong coverage for the Certificate III qualification, preparing students eligible for the assessment for 'Design, install and verify compliance and functionality of general electrical installations' (commonly known as the capstone assessment).