URL: https://digitalcollections.hoover.org/objects/40541 Collection Structure Poster collection > Five principles of effective work by L. V. Estes, Inc. Efficiency Engineers. Plan ... Schedule ... Execute ... Measure ... Reward... Item Title Five principles of effective work by L. V. Estes, Inc. Efficiency Engineers. Plan ... Schedule ... Execute ... Measure ... Reward... Collection Title Poster collection Date Created 1941/1945? Description Text only. Subject(s) United States World War, 1939-1945 Labor productivity Efficiency, Industrial Manpower Economic aspects Language(s) English Country of Origin United States Country of Origin United States Dimensions Overall: 22 x 17 in. (55.9 x 43.2 cm) Format Poster Medium political posters Color black and white Color black and white Hoover ID Poster US 6747 Record Number XX343.30917 Collection Guide https://oac.cdlib.org/findaid/ark:/13030/kt829015km Rights This work may be protected by copyright laws and is provided for educational and research purposes only. Any infringing use may be subject to disciplinary action and/or civil or criminal liability as provided by law. If you believe you are the rights holder and object to Hoover's use of this work, please contact the Hoover Institution Library & Archives.