The document explains circular linked lists, focusing on how to insert nodes at both the beginning and the end of a circular singly linked list. It describes the structure and properties of circular linked lists, emphasizing their unique looping nature. The document serves as a guide for implementing insertion methods in this data structure.

2. What is a Circular Linked List

11. Inserting node at the end of a Circular Singly Linked List

14. Inserting node at the beginning of a Circular Singly Linked List