A reasonably thorough survey of posters, particularly for Europe. The US is not very well covered; Russia (and the rest of Asia) could be greatly expanded, and southeast Asia is essentially missing; there's a bit on Cuba but otherwise Latin America and the Caribbean are invisible. Because of its age there's less color printing than we'd see today, and the images are mostly rather small, but there are a lot of them and the detail is reasonably good. Even with those limitations, though, it isn't a bad introduction to the topic.