[WORLD LEADERS]. A group of 3 books signed by world leaders. Including: GORBACHEV, Mikhail. Perestroika. New York: Harper & Row, [1987]. 8vo. Publisher?s full blue cloth, front board and spine stamped in gilt (minor rubbing and soiling to binding); publisher?s printed dust jacket (minor rubbing). FIRST AMERICAN EDITION, SECOND PRINTING. SIGNED BY GORBACHEV ON THE TITLE-PAGE. [Together with:] WALESA, Lech (b. 1943) A Way of Hope. New York: Henry Holt & Company, [1987]. 8vo. Black and white photographic plates inserted at center. Publisher?s full burgundy cloth, spine lettered in silver (spine and corners lightly bumped, some rubbing, soiling to binding); publisher?s printed dust jacket (some toning, minor rubbing to jacket). FIRST AMERICAN EDITION, FIRST PRINTING. SIGNED BY WALESA ON THE HALF-TITLE. [Together with:] CARTER, Jimmy (b. 1924). A Full Life. Reflections at Ninety. New York: Simon & Schuster, [2015]. 8vo. Illustrated. Publisher?s blue paper backstrip over blue boards, spine lettered in silver (minor rubbing to binding); publisher?s printed dust jacket (minor rubbing to spine and corners). FIRST EDITION, FIRST PRINTING. SIGNED BY CARTER ON THE TITLE-PAGE.