Universally acknowledged as one of the most prolific activists of the 19th century, Susan B. Anthony devoted most of her adult life to humanitarian reform. She was an integral player in nearly every social reform movement of her time, including temperance, women's suffrage, and abolitionism.

The publication of Susan B. Anthony: A Biographical Companion coincides with the 150th anniversary of the women's rights movement in the United States. More than 100 entries cover the significant events, people, publications, movements, and organizations associated with Anthony, and each entry describes the topic in historical context.