This pamphlet is by the author of the best biography of Bakunin, Bakunin: The Creative Passion, Mark Leier and covers the Marx-Bakunin conflict in the First International.
It shares a cover picture with Wolfgang Eckhardt’s The First Socialist Schism: Bakunin vs. Marx in the International Working Men’s Association [Oakland: PM Press, 2016], which raises the question whether this pamphlet is a (short) response to that work. It does not read that way, but the thought does cross the mind. Unlike that book, it does not attempt to go into the details of that conflict between the syndicalist and social-democratic tendencies within the International (personified, for better or for worse, in Bakunin and Marx). Instead, it aims to learn from history rather than repeat it