Create a simple Shopify Website

I already have a Shopify Account but looking to modify Store for selling 2 Christmas Titles (Hardcover Stories) that my wife wrote. I provided a Shopify Mockup set of Slides in PPT (attached) that will provide some context. I have all the graphics in JPEG's but find the Shopify App a bit challenging in building custom pages. My current Shopify App has Products loaded and Distribution, Discounts and Pricing in place.

Looking for some assistance in building this out in Shopify with Checkout and Shipping.....etc.

Thank you.