Series
The The Sandman series has 5 books.
Published between 1988 and 1999. The publication order differs from the reading order — both are below.
The Sandman is Neil Gaiman's comic about Dream of the Endless, published by DC's Vertigo line from 1989 to 1996 and collected in ten volumes beginning with Preludes & Nocturnes. Later additions such as Overture, a prequel, are best read after the main ten.
All 5 books total 716 pages.
The Books Oracle — track the series you are partway through, and see what to read next.