Timothy Scott Brown is one of the leading figures in the transnational group of scholars exploring the multiple dimensions of "1968" a.k.a. "The Long Sixties." Sixties Europe is the culmination of his project, a central part of the core library of books on the decade. He's particularly good at outlining the differences and convergences between the Sixties in different parts of Europe, including the often overlooked conservative bastions of Greece, Portugal and Spain. He makes a compelling case for placing '68 in a sequence of crucial dates including 1956 (Hungary) and 1989 (the disintegration of the Communist bloc.). You won't find much of the history of what the Sixties felt like--people are present mostly for the ideas they articulate--but it's a very valuable book.