Yes! If you don't want to purchase the entire series (4 volumes total) for $50, you're more than welcome to purchase individual books for $15 each.
Tip: it is cheaper to buy the set. And the preorder price is extra special because it's an exclusive and affordable price!
The books will deliver to your home at different times throughout the year (with the seasons they match). Details for each book below:
Volume 1: May, 2019
Volume 2: July, 2019
Volume 3: October, 2019
Volume 4: December, 2019
Gabe Schmidt designed each cover! Be sure to check out his website (linked within the main profile page).
Don't see the answer to your question? Ask the project creator directly.