I wonder what are Cue Sports.
Cue sports are basically any type of game played with a cue stick, so things like pool or billiards.
Interesting,  I have some times played pool, but I don't know what is different in billiards, do you?
Cue sports
Cue sports (sometimes written cuesports), also known as billiard sports, 
are a wide variety of games of skill generally played with a cue stick, which is used to strike billiard balls and thereby cause them to move around a cloth-covered billiards table bounded by elastic bumpers known as .
Historically, the umbrella term was billiards. While that familiar name is still employed by some as a generic label for all such games, the word's usage has splintered into more exclusive competing meanings in various
Comparison of cue sports
Carom billiards and pocket billiards (pool) are two types of cue sports or billiards-family games, which as a general class are played with a stick called a cue which is used to strike billiard balls, moving them around a cloth-covered billiard table bounded by rubber attached to the confining of the table.
"Carom or carambole billiards" (often simply called "billiards" in many varieties of non-British English) is a type of billiards in which the table is bounded