In the Electrical Engineering 2021 application, you can find all the most common electrical installation engineering drawings and lighting connections. To help theoretical electrical engineering, the application also contains all the most common formulas for circuit calculations. You can also watch installation and instructional videos and take electrical engineering knowledge quizzes through the app. The book series is best suited to a vocational school for electrical and automation technology training for both youth and adult students. It is also suitable for studying the basics at a university of applied sciences. The book is easy to read and is also suitable for students who are studying Finnish.