The International Association of Applied Psychology / Helio Carpintero -- The Roots of Applied Psychology in Today's World / Ruben Ardila -- The Multiple Origins of Applied Psychology / Helio Carpintero -- The Beginning of the Movement / Helio Carpintero -- The Congresses Between the Two World Wars (1921-1934) / Helio Carpintero -- Rising From the Ashes / Helio Carpintero -- The Association Across Europe (1951-1971) / Helio Carpintero -- Toward the Globalization of Psychology. The Congresses Around the World (1974-1998) / Helio Carpintero, Richard Mababu -- IAAP Congresses in the 21st Century / Richard Mababu, Helio Carpintero -- Supplemental Images -- IAAP's Divisions / Michael C Knowles -- IAAP's Publications / Ana M Jaco-Vilela -- The Regional Conferences of Psychology and the Regional Development of Psychology / Michael C Knowles -- Applied Experimental Psychology, Artificial Intelligence, Robotics, and New Fields of Psychological Technology / Ruben Ardila -- History of the International Association of Applied Psychology at the United Nations / Judy Kuriansky, Walter Reichman, Lichia Saner-Yiu, Raymond Saner, Wolfgang P Beiglbock -- The Contributions of IAAP to the Internationalization of the Education and Training in Psychology and a Science-Based Practice / Jose M Peiro -- IAAP's Leading Role in Forging the Development of International Psychological Ethics / Janel Gauthier -- The International Association of Applied Psychology / Christine Roland-Levy -- Epilogue / Janel Gauthier.