This text is a review of ORT's story and describes some of the main trends in ORT's development. Originally prepared for the 80th Anniversary of ORT in 1960, this booklet was extensively revised for the second printing in 1965. The present edition, prepared for the 90th Anniversary of ORT in 1970, was completely rewritten. The early sections were enlarged to include new historic material, which in turn, has required revision of emphases throughout. The closing sections describe a program that is nine decades removed in time from its origins, yet is still evolving as a force for Jewish modernization, still adapting to the ever-changing patterns of Jewish life.