UXL

UXL is a publisher who has published at least 15 editions.

Colonial America.
Math and mathematicians: the history of math discoveries around the world
Endangered Species
Parents aren't supposed to like it
Cold War: Almanac, 2-volume set
Ancient Civilizations: Biographies
Arab American Reference Library: Encyclopedia
Bowling, beatniks, and bell-bottoms
American Revolution: Almanac
Great misadventures
Middle ages.
African Biography, Volume 3: Mut - Z
Courtroom Drama: 120 of the World's Most Notable Trials, Volume 1: The Constitution, Family Law and Reproductive Rights, Freedom of Speech, Human Rights, Negligence
Sports Stars
War of 1812