Three signed books, all hardcovers with dust jackets: a later printing of American Individualism, signed on the first free end page in green fountain pen, "Herbert Hoover"; a first edition of The Challenge to Liberty, signed and inscribed on the first free end page in fountain pen, "To my good friend and consultant—from Herbert Hoover, Samuel Blythe"; and a first edition of America's First Crusade, signed and inscribed on the first free end page in fountain pen, "To my friend A. B. Cargill, from Herbert Hoover." In overall very good to fine condition, with some toning, sunning, and chipping to the dust jackets.