As assistant editor to Jim Salicrup on Marvel's flagship Spider-Man titles, he was instrumental[citation needed] in acquiring the talent that increased circulation to a record 2.5 million copies.
According to Herdling, this abrupt change of plans was the reason why the first issue of his run, number 44 (November 1993), was an out-of-continuity story whose text was taken entirely from the poem "The Rime of the Ancient Mariner".
[13] In 1996, Herdling became the Creative Director at Spiderwebart Gallery,[14][better source needed] which engaged in traditional book publishing, packaging, and design.
Later, as director of marketing for Medco Health Solutions, he served on the publications committee of the American Medical Writers Association.
[18] In 2016, Herdling launched a YouTube channel where he performs a variety of popular songs using manualism: the art of playing flatulent tones by squeezing air through his hands.