Frank Lloyd Wright (1867 1959 American architect one of the most influential of all time he was the creator of so called organic architecture Signed book In the Nature of materials The Buildings of Frank Lloyd Wright 1997 1941 by Russell Hitchcock Duell, sloane and Pierce New York 1941 inscribed on title page "To Llewis Casey at Taliesen West Frank Lloyd Wright Page has been reinforced with tape at left blank margin not affecting printing nor signature