freiherr von

Chronicles the twenty-year battle, public and private, between Sir Isaac Newton and Gottfried Wilhelm Leibniz over who invented calculus.

The author, a German military officer working for the German resistance, recounts his role in the secret plot, code-named Valkyrie, focused on assassinating Adolph Hitler during World War II.

A personal diary written during World War I by the German war ace, also known as "The Red Baron.".

Chronicles the twenty-year battle, public and private, between Sir Isaac Newton and Gottfried Wilhelm Leibniz over who invented calculus.

Explores the mysterious work of seventeenth-century French philosopher and mathematician Rene Descartes, and examines his mathematical theories and his understanding of the order and mystery of the cosmos.

Told in graphic novel format, the story of Manfred von Richthofen, better known as the Red Baron, from his beginnings as a cavalry member and a pilot-in-training to his death at the age of twenty-five and his enduring legacy.

A biography of the World War I ace known as the Red Baron who shot down 80 Allied planes before he himself was killed, a month before his twenty-sixth birthday.

Profiles Manfred von Richthofen, the "Red Baron", a German fighter pilot during World War I.

A biography of the early nineteenth-century German chemist whose teaching and laboratory methods widely influenced the development of the science of chemistry.