Herbert Klein attended until 1947, the Hillside High School and then studied until 1951 at Rutgers University in New Brunswick. After a subsequent law degree from Harvard University and his 1953 was admitted to the bar he began in Clifton to work in this profession. In the years 1954-1956 Klein served in the United States Air Force. Then he studied until 1957 at the New York University in New York City. At the same time he proposed as a member of the Democratic Party launched a political career. Between 1980 and 1985 he was mayor of Clifton. From 1971 to 1976 Klein was a member of the New Jersey General Assembly. Between 1977 and 1981 he was Managing Director of Democrats in Passaic County.
In the congressional elections of 1992, Klein was in the eighth constituency of New Jersey in the U.S. House of Representatives in Washington DC chosen, where he became the successor of Robert A. Roe on January 3, 1993. Since he has not been confirmed in 1994, he was able to complete only one term in Congress until January 3, 1995. After the end of his time in the U.S. House of Representatives Herbert Klein is no longer politically have appeared.