A Kindle freebie, and about 40 pages long. My second star is generous, and mainly given because the spelling and punctuation of this peculiar literary object was OK. This is not a biography of Tesla, as implied by the title. It is two exhortatory essays in the self-help vein (the first on the nature of genius, and the second on creativity), with an abridged and rather simplistic summary of Tesla's life as the middle 30-40%. To read it, one would assume that Tesla qualified for sainthood, and those with whom he came in conflict (Edison, Marconi, and various industrialists) were villains of the deepest dye. The author's all for simplistic characterization, though, given that what this volume is really trying to do is promote his other "you too can be a genius" self-help tomes.
If youngsters are moved by reading this item to buy a proper biography of Tesla (as opposed to more 'what is a genius?' nonsense), then it may actually serve a useful purpose in this world.