Collider has published a list of ten book series considered worth reading, curated by writer Jeremy Urquhart, drawing from multiple genres and different eras of publishing. The list only counts series of four or more books, treating trilogies as a separate category and excluding them from consideration.

– James Ellroy's "L.A. Quartet" (1987–1992), a crime series featuring L.A. Confidential and The Black Dahlia, praised despite the experimental White Jazz being seen as its weakest entry.
– Brandon Sanderson's "Cosmere" (2005–present), a vast interconnected fantasy universe including the Mistborn series and the planned ten-part Stormlight Archive.
– (Full list continues beyond the excerpt provided, ranking down to number one.)