This book is supposed to be a beginners guide to electricity. I'm a mechanical maintenance employee at a float glass plant. I got this to help me learn more about my job, needing to know more about electrical work. I found this book pretty useless. It's well done but had none of the info I needed. I either
A) Knew the info already or..
B) Had no use for the info presented.
I wouldn't recommend this to anyone with similar goals or situations to mine.