This is a must-read for anyone interested in early rocket programs, Soviet space program development, and the space race between US and USSR. This 4 volume set

This is a must-read for anyone interested in early rocket programs, Soviet space program development, and the space race between US and USSR. This 4 volume set covers 5 decades of rocket science development (30s-70s) and span the career of a key top-level contributor to the Soviet space program, Academician Boris Chertok (https://en.wikipedia.org/wiki/Boris_Chertok https://en.wikipedia.org/wiki/Boris_Chertok).