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Review title: What a Shame!!!
Product review: Yesterday received it.....Folks, This product has nothing to do with HVAC. In fact, it is not a book by its tiny size ( 5.9 x 3.6 x 0.4 inches), nor is it by its poor over-simplified introduction into electricity theory content. I'd call this "book" a Public Deception. You won't find any practical use for it. I'd given it zero stars if I could...All in all, wasted money.
