20th Century Syllabus

You're teaching a massive survey course on the history of the 20th Century. What books are on the syllabus, in what order? Let's say you're limited to seven primary texts, with as many supplemental texts as you'd like. And if you're wondering whether to favor comprehensiveness vs. readability, for my purposes, I'd go with readable. (I'm not actually creating a syllabus for a 20th Century history course. But I'm looking for a solid corpus of Postwar-ish, Soul of a New Machine-ish books on the 20th Century for my own edification. Thanks much)