After the DC comic book series The Sandman concluded with #75, numerous comics, novels and spin-offs made use of its characters, concepts and universe. The Sandman was written by Neil Gaiman.
The Dreaming was a monthly title inspired by Neil Gaiman's Sandman that ran for 60 issues (with one special, "Trial and Error") from June 1996 to May 2001. The comic is set predominantly in Dream's realm "The Dreaming".
Lucifer was a monthly title written by Mike Carey, which began in June 2000 and ended with issue 75 in June 2006. The comic focused on the character of Lucifer (picking up after the end of the "Season of Mists" storyline), and had started as a Sandman Presents" mini-series.
Sandman Mystery Theatre was a monthly title written by Matt Wagner and Steven T. Seagle featuring the Golden-Age Sandman Wesley Dodds in a film-noir-esque setting published by Vertigo for 70 issues between 1993 and 1999 as a direct result of Neil Gaiman's landmark series.
Dead Boy Detectives was a monthly title by Toby Litt and Mark Buckingham that followed the adventures of Charles Rowland and Edwin Paine, the Dead Boy Detectives, two dead schoolboys who travel the world solving mysteries. Spun off "From the Pages of the Sandman", the title launched in December 2013.
Initially The Dreaming, the first ongoing spin-off of The Sandman, served as anthology series telling mostly unconnected tales of various Sandman-related characters. When it was decided that The Dreaming would be retooled into a more focused series with an ongoing storyline, it was decided that another outlet would be created to continue to tell anthology style stories. Therefore, between 1999 and 2004, a meta-series of mini-series and one-shots were published under the banner of "The Sandman Presents", telling tales of various supporting characters related to The Sandman franchise.