In "Volume 2 AC-Basic AC Theory-What is alternating current (AC)?" it is stated, "...AC an advantage unmatched by DC in the realm of power distribution...". Are the authors aware that high voltage DC is commonly used for long range power transmission? Furthermore, it is stated in the text "When transmitting electical power over long distances, it is far more efficient to do so with stepped-up voltages...". Is there any way confusion may be minimized by removing the pollution of mystical fabricated terms like "stepped-up voltage" for this explanation? Could the words "stepped-up voltage" simply be replaced with the words "high voltage"? I believe emphasis should be placed on the fact that, high voltage is what makes long range power transmission possible. Please continue the fight of ingorance you have demonstrated with the very publication of this text by not creating an illusion that leads students to believe that somehow losses can be elimated by the periodical reversal of current.