Like arrays, which were introduced in Part 3 of this tutorial series, linked lists are a fundamental data structure category upon which more complex data structures can be based.

Hello all, I'm working on a Double Linked List in C and I've got it mostly working, but when I've got one node, and I add another node, the first node loses its value.

A linked list is a list that connects data linearly, and is one of the structures for handling data.