An introduction to the world of electronics. It has been written to be fully in line with the Advanced GNVQ, BTEC NII and NIII, and A Level/AS Level Electronics (in particular NEAB). The approach is student-centred with Test Your Knowledge features to check understanding and activities suitable for practicals, homework and other assignments. Key facts, formulae and definitions are highlighted to aid revision, and theory is backed up with numerous examples throughout. Each chapter ends with a set of problems which include exam-style questions and multiple-choice answers provided in the back of the book. In addition, a number of assignments appear through the book for which answers are provided in a separate lecturer's supplement (free to adopters). The assignments should be suitable for tests or revision homework.