You may remember a blog post from last year about a French collector and former visiting Hopkins professor, Jean Goulemot. And that much of his collection, which we have purchased, includes books and other material on the “avant-garde.” The fact is, we have an incredible collection of 20th century avant-garde materials here at Hopkins; including lots of Surrealist books and periodicals, books and reviews from the Dada movement, and German Expressionist publications.
The treasures date from the earliest years of the 20th century, right up to more recent decades, with for example books on Lettrism, a particular French avant garde movement. And we recently bought another 
segment of Goulemot’s collection, including more avant-garde goodies, as well as interesting books on Paris in the 19th century, 18th century French theater (another significant collection here), and French eroticism. (Professor Goulemot also collects books and artifacts on the Dreyfus Affair, and the collection at MSE is truly outstanding.)
Here’s my attempt to keep up with the avant-garde periodicals perhaps the most significant part of the collection. But there’s so much more! So, feel free to ask a librarian.