Nahum Mandel was born in 1927 in Luck (Poland), today Lutsk (Ukraine). He immigrated with his parents in Brazil in 1930. He graduated from the "Ginásio do Estado" high school in São Paulo. In 1958. he founded the Brazilian branch of "Hashomer Hatzair", a Zionist youth movement. In 1948 he married Shoshana Spilberg, from Bahia. Brazil. and they immigrated to Israel with the first group resettlement program sponsored by "Hashomer Hatzair". Since 1954 they have been members of Kibbutz Gaash. They have three children - Atalia (Mrs. Moshé .Skiba), Omri (his wife: Carmen Cesáreo) and Itay - and 5 grandsons (one of them tragically passed at 6 years old, in 2008)

Mandel has worked in house construction field since 1948. in 1970 he completed pre-engineering training program, which enabled him to design and direct some 200 constructions projects over the years. For 12 years he worked as an supervisor and technical adviser to the Building Department of the Kibbutz Artzi

He retired in 1992 but continues working in his chosen field from his office at home in his kibbutz. He also keeps busy programming computers and writing books. Five of his books have been published, with two more are ready for publication

AUTOBIOSOPHY - The Thought of an Agnostic Jew, by Nahum Mandel
Minerva-Press, London, 2001. 444 pages, hardback.
Second edition, at 2005, primarily for distribution to public and university libraries.