This year marks the 20th Anniversary of SPX, which will be held September 13 and 14, 2014 at the North Bethesda Marriott Hotel & Conference Center. For their 20th birthday, they have announced Keith Knight, Shannon Wheeler and Derf as special guests.

Keith, Shannon and Derf join the previously announced alt-weekly guests Jules Feiffer, Lynda Barry, James Sturm, Charles Burns, Jen Sorensen, Tom Tomorrow, and Ben Katchor, as well as SPX first-timers Brandon Graham, Emily Carroll, Drew Friedman and Mimi Pond.

Keith Knight is the creator behind the long running alt-weekly comics Th(ink) and The K Chronicles, the latter of which won the esteemed Harvey Kurtzman Award as well as multiple Glyph Awards. His syndicated strip, The Knight Life, runs in such esteemed newspapers as the Washington Post. Keith’s will debut his latest book, which is a collection of Knight Life strips titled Knight Takes Queen. He is currently working on a graphic novel about his days as a Michael Jackson impersonator.

Shannon Wheeler has posted comics online since 1995, amongst them the alt-weekly favorite, Too Much Coffee Man that he began drawing in 1990. He is a contributor to The New Yorker, leading Shannon to publish I Thought You Would Be Funnier, a collection of cartoons rejected by that magazine. His latest book, God Is Disappointed In You, is a collaboration with Mark Russell that is a humorous attempt to retell the Bible in modern terms that has just released an audiobook version read by Dr. Venture/James Urbaniak.

Derf is the author behind the autobiographical graphic novel best seller My Friend Dahmer. His alt-weekly series The City recently completed its over 20 year run. Derf will be at SPX to debut his latest compilation, True Stories Volume One. Derf has been nomi9nated for numerous Eisner and Kurtzman Awards, as well as being the recipient of the prestigious Robert F. Kennedy Journalism Awards.