[2] He attended Erasmus Hall High School in Brooklyn, and went on to New York University in 1950 with a political science degree.

[2] In 1955, while serving in Germany, Frommer wrote and self-published a guidebook called The GI's Guide to Traveling In Europe.

[3] In 1957, Frommer followed up with a civilian version called Europe on 5 Dollars a Day, which covered major European urban destinations.

As a lawyer, he worked at Paul, Weiss, Rifkind, Wharton and Garrison and was involved with water rights cases in the American West, as well as defending D.H. Lawrence's controversial novel Lady Chatterley's Lover against the U.S. Post Office (a benchmark First Amendment case).

[2] After Frommer's marriage to Hope Arthur ended in divorce, he married Roberta Brodfield in 1994.

[2] He died of complications from pneumonia at his home on Manhattan's Upper West Side on November 18, 2024, at the age of 95.