Lists are ordered, mutable (changeable) collections of items. Items can be of different types.

• Creating: my_list = [1, "hello", 3.14]
• Accessing: Use index (starts at 0). my_list[0] is 1.
• Slicing: Get a sub-list. my_list[1:3] is ["hello", 3.14].
• Modifying: my_list[1] = "world"
• Common Methods: append(item), insert(index, item), pop(index_optional), remove(item), sort(), len(list) (gets length).