We are delighted to introduce to you this well-researched book by author Vinh-The Lam about the Armed Forces of the Republic of Vietnam (ARVN). As former Head, Library Science Department, Vạn Hạnh University in Saigon, South Vietnam, before 1975, and Head, Technical Services Division, Universi-ty of Saskatchewan Library in Canada at his retirement, author Vinh-The Lam has conducted research and published two books on the Republic of Vietnam. Both the Vietnamese version, titled "Việt Nam Cộng Hòa, 1963-1967: Những Năm Xáo Trộn" and the English version, titled "Republic of Vietnam, 1963-1967: Years of Political Chaos" were published by Hoài Việt Publishing House in Hamilton, Ontario, Canada in 2008. The second edition of the English version, under the new title "His-tory of South Vietnam: the Quest for Legitimacy and Stability, 1963-1967", was published by the British publisher Routledge in 2021. His book by Routledge is currently the only study on this very special period in the history of the Republic of Viet-nam (RVN).