Here is a list of X-Men stories that every fan should read and any new fan to X-Men.
Some of these stories are the best stories ever written, but some are just essential. Some of these you have to read to understand X-Men history. Some stories are just good.
This list is not a list of my favourite stories, that list will come in due time. You will notice in the list at first, some are major story arcs and as the list goes on, you will notice some good stories as well.
I will update this list from time to time.