lists tuples sequentialconcept of "next itemsimultaneousall items "at oncebest with all items of the same type safe to have multiple types serial parallel [ ('dowling''bob' 'rjd 'sequence of prime numbers surnameforenameageweightuser id philosophicallyit is appropriate to use lists where there is sequence of items or where you need mutability tuples are more appropriate for circumstances where you think about all the items at once because of thistuples are appropriate where you want to join together collection of parameters of different types into single object