The Agricultural Crusade: A Chronicle of a Farmer in Politics is an important book written by Solon Justus Buck that details an important period in American history. The author examines farmers' movements and their struggle for political and economic rights at the end of the 19th century. The book reveals the causes, nature and consequences of the agrarian movement, giving the reader a deep understanding of how farmers influenced the political situation of the time. Based on extensive research, this book is considered an important source for understanding the history of farm unions and their impact on America.