Observations about society, including culture and religion, and about life. With our inherent social nature, group behaviors are important, such as divide and conquer, absolute power, or conformance, in the critical issues of our day. A team with diverse skills can accomplish what an individual cannot. Our problems are solved when we work together.
I have collected lists of various books that I found to be enlightening. For reference, I checked whether amazon.com has them (though of course they do not have to be obtained there); if a book is listed then I provided a link as that site provides customer reviews.
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