A very short and fast read that could be a good introduction to people who are just now learning about the history of May Day, which was basically me a metaphoric second ago so yay.
Written from what appears to be an Ontario perspective there is coverage of the rest of Turtle Island, with some pretty effortless inclusion of female-identified peoples contributions. And while there's a bit of tacit racial diversity included that could have been pushed a bit further I think. Reflecting on diversity I am struck by the lack of representation of disability in workers history comics... I can think of a few reasons why this is, but you would think there could be at least some background characters who were IDK injured on the job? This is one of the intersections I still feel like very much a n00b in this area so I really don't have any idea.
To conclude, I feel like this fills an important niche in working rights comics, which is short intro texts. This book also includes something I love, namely a reading recommendation list.