Al-Farabi, philosopher, lawyer, mathematician and logician Persian (and he probably studied other sciences such as medicine, music, history, geography and others, according to several biographers and historians) of "Muslim" confession ( but accused by other great jurists, theologians and philosophers, as output orthodoxy by its considerations and doctrinal positions contrary to the "orthodox" creed) prepare a brief presentation of writings and books (in any case attributed by some) of Plato, in connection with the ideas and concepts of happiness, truth, knowledge, goodness, ways and means to acquire knowledge, etc. It's interesting, but we expected more elaborate comments writings of Plato in question. As for the price, it is high for such a small number of page (not even 30 in total). Interesting, then, but no more.