Pranin, Stanley A, ed. Aikido masters: prewar students of Morihei Ueshiba. Tokyo: Aiki News. 1993. ISBN4-900586-14-5 This volume contains 14 in-depth interviews with direct participants in the early days of Aikido publisher
Stone, John and Meyer, Ron (eds.) Aikido in America North Atlantic Books 1995. ISBN1883319277 Interviews limited to 13 aikidoists in the United States from 1990 to 1994; not meant to be comprehensive, Japanese teachers not covered. Editors were primarily interested in how Americans have responded to, changed, and expanded Aikido in the United States.