Geng was an influential and acclaimed humorist and editor who typically wrote short stories and essays, the best of which generated humor that worked on more than one level. An April 29, 2007 story in the Los Angeles Times called her "a brilliant contributor to The New Yorker and the quirky dark lady of Manhattan's literary scene, celebrated for her deadpan essays and revolving-door sex life."
Her work included satire and parody, with allusions to both high culture and popular culture. These short pieces were often inspired by some contemporary comment or event but moved beyond mere contemporary gags. Critics praised her parodies for their unusual coupling of subjects and control of style, e.g., the Watergate Tapes reviewed by a hip Rolling Stone critic, or a sitcom about the young Henry James. She appreciated similar humor, and wrote approving essays about Monty Python in The New Yorker and The New Republic. However, Ben Yagoda in About Town: The New Yorker and the World it Made called many of her later writings "subtle to the point of unintelligibility." 
In addition to her essays and work as an editor, Geng reviewed books for The New York Times for many years, starting in the early 1970s. She also wrote for the Village Voice in the early 1970s. Her short parody of the film critic Pauline Kael, published in The New York Review of Books in 1975, caught the eye of Roger Angell, a fiction editor at The New Yorker. She then began writing for The New Yorker in 1976 and also became an assistant fiction editor.
Geng worked closely with writers such as Philip Roth, Frederick Barthelme, Milan Kundera, William Trevor, James McCourt, and Ian Frazier. She remained at The New Yorker until 1992, leaving because of disagreements with the magazine's editor at the time, Tina Brown.
In addition to the writing noted above, Geng wrote about feminist issues in pieces such as "Women in Science Fiction,” for Bookletter, “Requiem for the Women's Movement,” for Harper's and “Comment” on the Equal Rights Amendment" for The New Yorker.
In 2007 her brother, Steve Geng, published a memoir titled Thick as Thieves, which chronicled his relationship with his sister as well as his experiences of growing up as an army brat, drug addiction, time in jail, military experience, HIV and osteonecrosis.
Bibliography (not inclusive)
- Guess Who? A Cavalcade of Famous Americans 1969 (a children’s historical book)
- In A Fit Of Laughter: An Anthology Of Modern Humor, edited by Veronica Geng with an introduction by Steve Allen, 1969
Collections of her writings are published in:
- Partners 1984
- Love Trouble is My Business 1988
- Love Trouble, 1999, published posthumously, collects the two previous books and adds previously uncollected work.
- Cosmopolitan's Hangup Handbook, 1971
- Not the New York Times, 1978
- The 80s: A Look Back at the Tumultuous Decade, 1980-1989, 1979
Contributions to The New Yorker
- Various stories/essays/criticism, 1976-1992
- Smith, Dinitia. "Veronica Geng, 56, Parodist And Editor With Rapier Wit," (Obituary) The New York Times, December 26, 1997
- Los Angeles Times Book Review, April 29, 2007, p. R4
- Geng, Veronica. The New Yorker, August 27, 1979
- Geng, Veronica. The New Republic, April 23, 1990
- Pagoda, Ben. ‘’About Town: The New Yorker and the World it Made’’ DeCapo Press, 2001
- Senior, Jennifer. "Humor Came Her" New York Magazine, May 10, 1999
- Film Comment, 1970-1989
- American Film, 1970-1989
- Soho News, 1970-1989
- The New Republic, 1970-1989
- The New York Review of Books, 1970-1989
- Geng, Veronica. "Women in Science Fiction”, Bookletter October 27, 1975)
- Geng, Veronica. “Requiem for the Women's Movement,” Harper’s Magazine|Harper's, November 1976)
- Geng, Veronica. “Comment” on the Equal Rights Amendment," The New Yorker, May 22, 1978
- Bentley, Toni. "Secrets and Lies" (Review of Steve Geng's memoir, "Thick as Thieves"), The New York Times Sunday Book Review, May 6, 2007