Step 1 - Add the Shop Page to Your Website
Click the [website] tab from the left side menu, click [add page], then select the [shop page] from the pop-up window.
Then click the  icon to load the page editor.
Make sure you've added products to your store.
Step 2 - Customize the Shop Page
Click "Shop Products" from the left side menu to load the page settings
Give the page a title and a description
You can display products by category. Click here to learn How To Display Store Products by Category
You can enable side navigation when products are displayed by category
You can set the alignment of the title and description
Step 3 - Don't forget to save the page!