It is universally recognized that the peace treaty must include a general system for recognition of mutual employment of air transport. This book is a good general background book which summarises the basic facts of types of planes, problems of weather, potentials of progress in speed, altitude, fuel, relative importance of earge planes, flying boats, glider freighters, helicopters. There is an historical survey of the international air picture before the war., the tangle of air lines, the political blackwell used to extend airlines on the part of Germany, Italy, Japan, the frantic struggle for supremacy and the determination to keep free of foreign competition on the part of Britain and Russia. Then there's the adaption of civil aviation to war activity. And there's the well-founded fear of the U.S. in post-war setup. Brief into the promise of what will come out of the laboratory of war, the development of electronics, etc. Aviation is sever the new way of life. Freedom of the air must be aspired to, with mutually shared police aircraft, land bases, and for refuelling. Not least important in the book is the analysis of the agencies, -- A.T.C., C.A.B., A.T.A.