“The Span of Empire” by Eric Flint and David Carrico.
Title: The Span of Empire Series: Jao Empire Number in Series: 3 (three) Author(s): David Carrico, Eric Flint Cover Artist: Bob Eggleton Language: English Publisher: Baen Books Published: September 2016 ISBN-10: 1476781532 ISBN-13: 9781476781532
“The Crucible of Empire” by Eric Flint and K.D. Wentworth.
Title: The Crucible of Empire Series: Jao Empire Number in Series: 2 (two) Author(s): Eric Flint, K.D. Wentworth Cover Artist: Bob Eggleton Interior Artist(s): Language: English Publisher: Baen Books Published: March 2010 ISBN-10: 1234567890 ISBN-13: 9781234567890
“The Course of Empire” by Eric Flint and K.D. Wentworth.
Title: The Course of Empire Series: Empire Number in Series: 1 (one) Author: Eric Flint, K.D. Wentworth Cover Artist: Bob Eggleton Language: English Original Publisher: Baen Books Originally Published: September 2003 Publisher: Baen Books Published: March 2005 ISBN-10: 0743498933 ISBN-13: 9780743498937