Electrical Motor Controls: Workbook

I have used this workbook, in conjunction with the hard cover text, for about 14 years. I have tried several other books but none of them can compare with this one. The material is very clear and presented in a precise manner. Some of the answers from the answer book, that is provided for instructors, are a little over complicated for application but the student does not see this. The text starts very simple and builds from there to the more complicated drawings. The only suggestion I would make is to use another letter to indicate the coil besides "M". The students mistake this for the motor once in a while.