Power Quality Measurement and Troubleshooting 2nd Edition 2nd Edition

It is obvious that this book started as an article somewhere and then was expanded to fill a book as most of the illustrations have little bearing to the content of the text. The content oscillates (nice use of technical term, right?) between basic electrical concepts and complex concepts such as complex phasors and the mathematical relationships of three phase wave forms. It takes the time, 23 pages worth, to explain basic voltage and current measurements (with 2 pages on rubber gloves and glove testing), but covers harmonics in two paragraphs. If this is an engineering text, get rid of the simple stuff and if this is a introduction for electricians, the complex stuff is unnecessary. Finally, who is the genius behind illustrations using a light yellow background and yellow lines for wave forms? Pretty much guarantees that no one can see the information in the illustration.This would make a nice 25 page pamphlet, to sell it as a 200 page book is ridiculous.