A linked list is a series of connected nodes where each node contains data and a link to the next node. There are different types of linked lists including doubly linked lists where each node has a link to the next and previous node, circular linked lists where the last node links to the first node to form a closed chain, and circular doubly linked lists which combine both doubly linked and circular lists. Key operations on linked lists include adding and removing nodes from the beginning, middle, or end of the list as well as traversing the list.
Related topics: