Rich Koslowski is best known for his fan-friendly comic book series The 3 Geeks (later Geeksville), the recipient of three Eisner Award nominations, and the much-lauded 2002 graphic novel Three Fingers (published by Top Shelf Productions), which won the coveted Ignatz Award for Outstanding Graphic Novel and was named one of the "500 Essential Graphic Novels" by HarperCollins in 2008. His second graphic novel with Top Shelf, The King, was released in 2005 and has been published in multiple foreign languages. In 2007, he wrote his first novel, a Christmas thriller entitled The List. 2008 brought Rich his first writing assignment for Marvel Comics, rebooting their popular character Guardian, now named Weapon Omega. Koslowski's writing of Weapon Omega was recognized with a Prism Award.
In 2010, his third graphic novel with Top Shelf, BB Wolf and the Three LPs, was released, and Koslowski won the Glyph Award for Best Artist. In 2022, he completed his most ambitious graphic novel to date with Top Shelf, the superhero satire F.A.R.M. System. He has worked as a writer and artist for companies such as Marvel, Dark Horse, Bongo, Archie, Boom Studios, DIC, Saban, and many more.