by Matt Peters   Content advisory: Strong language, nudity, and brief depictions of sexual activity, drug use, and interpersonal violence   In the 1960s, an underground comics scene emerged in the United States and United Kingdom, giving rise to small-press and self-published comics that featured stories about free love, recreational drug use, subversive politics, and other themes that were normally considered off limits in mainstream comics. Underground comics were commonly sold in head shops, where their mature content seemed less conspicuous among drug paraphernalia and other countercultural lifestyle goods. While mainstream publishers such as Marvel, DC, Dell, and Charlton cooperated… Read More