I would say, there need not be a structure in learning with stock market, as it is fragmented, and there could be areas where you are interested in and can delve right in.
If you are the kind of a person who likes structured learning, start with fundamental analysis. Pick a company that you already know, an IT company, and see how the business is analyzed, know about the business from the perspective of investors. You can jump into technical analysis too.
Or you can check the portfolio threads started by members, and see which style resonates with you.
Or you can check the posts made my one member, this helps too, as we have members who have completely different perspectives towards investing, and present different views. This activity in itself is a great learning.
If you are interested in books, you can check this.
And a discussion.
It is an ocean at the beginning, you can swim as much as you can, just to know how to swim and what kind of a swimmer you are, or, you can pick a direction and swim towards it and see what you will find.