Sequence container used to store data based on sequential neighboring memory Python code line starts from hash symbol # Logical (abstract) representation of data type, and their operations Data values that can be further decomposed into smaller parts Structuring "node-based-elements" with linking Element without predecessor in a List Data values that cannot be further decomposed into smaller parts Element without successor in a List A finite step-by-step list of well-defined instructions Set of operations, without implementation details Choose... Head Algorithm Simple data types Interface Tail Composite data types Linked Structure Abstract Data Type Comment Array Structure Tree Constructor