. The Walking Dead
The pop-culture juggernaut that led TV ratings for years began life as one of the best comics for adults, kicking off in 2003 and only concluding its epic run mid-2019. Presented in black, white and grey tones, across 193 issues, The Walking Dead follows Rick Grimes, a small-town sheriff who leads a group of survivors in search of a sanctuary as an epidemic causes the dead to rise and feed on the living. This is one of the best graphic novels for adults as it blends equal parts inspiring and shocking, as Rick, his family and a colourful cast of survivors quickly discover that the only thing more dangerous than the dead are those who will do anything to survive.