two books written by the british writer PHILIP GIBBS (see link) give a good deal of background information of some of the causes that lead to WW II .
it is worth noting that these books were written and published in the early 1930's ,BEFORE WW II started , so they are not just some historian's point of view but reflect what his experiences and thoughts were at that time .
our local library still carries these books - in the dank cellars . they were happy to retrieve them for me .
i certainly found the books very interesting . they helped me gain a better understanding of some of the causes of that terrible war .
hbg
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European journey; by Philip Gibbs; being the narrative of a journey in France, Switzerland, Italy, Austria, Hungary, Germany, and the Saar, in the spring and summer of 1934. With an authentic record of the ideas, hopes, and fears moving in the minds of common folk and expressed in wayside conversations
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England Speaks , being talks with road-sweepers , barbers , lords and ladies ... the man in the street ... and all manner of folk of humble and exalted rank
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they should be available for a few dollars in many used book stores .
(he has written quite a number of other books also)
...PHILIP GIBBS...