Link to your individual collections by creating a new linklist in the Navigation section of the admin.
You can then have it appear here by choosing your new linklist under Customize Theme / Sidebar.
Write a few sentences to tell people about your store (the kind of products you sell, your mission, etc). You can also add images and videos to help tell your story and generate more interest in your shop.
To edit the content on this page, go to the Pages section of your Shopify admin.