A list is information in Logo enclosed in square brackets. Lists can contain numbers, words, other lists or any combination. Each item inside the square bracket of a list is an element of the list. Each list is a single object in Logo, although there is no limit to the number of elements in a single list. Examples of lists include:
? LIST? [1 2 3 GO!]
? LIST? [[RED BLUE] [ORANGE GREEN ] [BLACK YELLOW]]
? LIST? [PD FD 50 RT 90]
An empty list () is a list with no elements.
? LIST? 
? COUNT 
Additional commands which are used with words and lists include: