Textbook in PDF format Electromagnetics Through the Finite Element Method, Second Edition introduces techniques for coupling magnetic phenomena with electrical circuits and demonstrates special treatment and simulation techniques for electromagnetic problems with an open domain. This new edition includes a complete chapter on how to produce your own FEM software for electromagnetism quickly and easily. It also includes a new section on new computer programming techniques. It includes a chapter dedicated to presenting the technique for simultaneous simulation of the magnetic circuits by FEM with the analysis of electrical circuits. This technique is very useful in industrial applications where it is necessary to know not only the magnetic device, but also the converter that drives it. This new edition will not only teach the basics of this methodology, but readers will also learn about the techniques applied in industry and the computational resources to write their own FEM software, using the facilities of the Python language. The potential of this approach has been demonstrated for over 30 years with undergraduate students