This poster is based on an anonymous letter which was reprinted by Rabbi Shmuel Weinberg, the Divrei Shmuel of Slonim. In it the author describes 10 concise points that summarize all of what Hasidism is.
In 2016, while Rabbi Moshe Weinberger was serving as Mashpia of Yeshiva University he gave a class on this letter in which he describes it as a "hidden treasure" and something "important to have on your refrigerator."
Link to the class: https://www.yutorah.org/lectures/lecture.cfm/850643/rabbi-moshe-weinberger/the-ten-prerequisites-from-the-baal-shem-tov/
Poster is 12 inches by 18 inches printed on poster paper and will be shipped to your door.