3 books in series

Dragonlance: Bertrem's Guides

Dragonlance: Bertrem's Guides is a 3-book series with 3 primary works first released in 2000 with contributions by Nancy Varian Berberick, Stan Brown, Paul B. Thompson, Jeff Crook, Mary H. Herbert, John Grubber, and Don Perrin.

Bertrem's Guide to the Age of Mortals: Everyday Life in Krynn of the Fifth Age
Bertrem's Guide to the War of Souls, Volume One
Bertrem's Guide to the War of Souls, Volume Two