A timely appraisal of MacArthur and the situation in the Pacific, extraordinarily close to being journalistically immediate -- even in these times when every day makes history. John Gunther gives us once again brilliant evidence of his genius as reporter, his gift of assimiliation, selection and presentation. As succinctly and vividly as only he can do, he gives an ""inside"" picture of Japan today -- not a very penetrating portrait, perhaps, but fair and balanced, showing a country which has experienced war, defeat, revolution in ten years. He feels that some of the miracle of democratization, imposed, to be sure, by the man who is virtual dictator in Japan, will stick; that Japan will emerge from military occupation a changed- if not basically reformed- nation. Through the picture of MacArthur -- giving him full measure of appreciation for his capacities, his genius, his shortcomings -- one sees that only this way could the amazing achievements have been reached. Quick takes of other danger spots of the Asiatic area,- Indochina, Tibet, the Philippines, Formosa; longer survey of the current explosive area of Korea; then he turns again to Japan, with final summation of the accomplishments and the probable next turn of the wheel. Revealing, much of it newsworthy, and always good reading. Probably experts will consider it superficial, but for the average reader it is good coverage.