The Sandman: Overture is a six issue comic book miniseries written by Neil Gaiman with art by J.H. Williams III. It is a prequel to Gaiman's The Sandman series, and debuted in 2013, about 17 years after the end of the regular comic. From Wikipedia
Showrunner Allan Heinberg concludes Dream’s redemption by adapting pivotal comic arcs across two volumes with a July bonus episode