George Sullivan

Using a variety of primary sources, this biography of Harriet Tubman describes the life of a former slave who was responsible for helping many other slaves to freedom.

Recounts the story of the Lewis and Clark Expedition to explore the uncharted western wilderness, placing it in its historical context.

A biography of Karol Wojtyla of Poland, the first non-Italian to be elected Pope in several centuries.

A biography of Berenice Abbott, who was a pioneer in the field of professional photography and is particularly acclaimed for her photographs of the streets and buildings of New York City before they were replaced by skyscrapers during a building boom in the 1920s and early 1930s.

A biography of the brothers responsible for developing the first airplane, featuring excerpts from their journal entries, letters and drawings.