Under the banner of First Second Books, located in the Flatiron Building in New York City, Siegel is the editor of works by authors and artists such as Joann Sfar, Eddie Campbell, Paul Pope, Jessica Abel and Lewis Trondheim, Jane Yolen, and Adam Rapp.
Mark Twain | Mark | Mark Wahlberg | Mark Knopfler | Mark Zuckerberg | Mark Rothko | Mark Antony | Mark the Evangelist | Gospel of Mark | Mark Ronson | Mark Spitz | Mark Foley | Mark Murphy (singer) | Mark Murphy | Mark McGwire | Mark Hamill | Deutsche Mark | Mark Taper Forum | Mark Millar | Mark Lewisohn | Mark Kermode | Mark Lanegan | Bugsy Siegel | Mark Waugh | Mark Rydell | Mark Goodson | Mark Owen | Mark Mothersbaugh | Mark Medoff | Mark Heard |