Left of the Dial features interviews by musical journalist, folklorist, educator, and musician David Ensminger with leading figures of the punk underground: Ian MacKaye (Minor Threat/Fugazi), Jello Biafra (Dead Kennedys), Dave Dictor (MDC), and many more. Ensminger probes the legacy of punk's sometimes fuzzy political ideology, its ongoing DIY traditions, its rupture of cultural and social norms, its progressive media ecology, its transgenerational and transnational appeal, its pursuit of social justice, its hybrid musical nuances, and its sometimes ambivalent responses to queer identities, race relations, and its own history. Passionate, far-reaching, and fresh, these conversations illuminate punk's oral history with candor and humor.

Rather than focus on discographies and rehashed gig memories, the interviews aim to unveil the secret history of punk and hardcore ideologies and values, as understood by the performers. In addition, Ensminger has culled key graphics from his massive punk flyer collection to celebrate the visual history of the bands represented. The book also features rare photographs shot by Houston-based photographer Ben DeSoto during the heyday of punk and hardcore, which capture the movement's raw gusto, gritty physicality, and resilient determination.

Interviews include Peter Case (Nerves, Plimsouls), Captain Sensible (The Damned), Tony Kinman (The Dils), El Vez, Charlie Harper (UK Subs), The Deaf Club (an oral history of the landmark San Francisco club), Mike Palm (Agent Orange), Gregg Turner (Angry Samoans), Ian MacKaye (Minor Threat, Fugazi), Jello Biafra (Dead Kennedys), Gary Floyd (Dicks, Sister Double Happiness), Mike Watt (Minutemen, fIREHOSE), Shawn Stern (Youth Brigade), Kira Roessler (Black Flag, Dos), Jack Grisham (TSOL), Keith Morris (Circle Jerks, Off!) Fred "Freak" Smith (Beefeater), U-Ron Bondage (Really Red), Vic Bondi (Articles of Faith), Lisa Fancher (Frontier Records), Dave Dictor (MDC), and Thomas Barnett (Strike Anywhere).