Series
There are 3 books in the The Thrawn Trilogy series.
Published between 1992 and 1993, in the same order they are meant to be read.
Grand Admiral Thrawn, the Empire's most brilliant tactician, has seized control of the Imperial remnant and mounted a campaign to destroy the New Republic. With forgotten superweapons at his disposal, Thrawn is the kind of enemy who thinks three moves ahead. The definitive Star Wars Expanded Univers
The 2 books listed here total 935 pages.
The Books Oracle — track the series you are partway through, and see what to read next.