First few books I tried weren't available, e.g. "Project Hail Mary"
https://www.amazon.com/Project-Hail-Mary-Andy-Weir/dp/059313...
https://www.amazon.com/Project-Hail-Mary-Andy-Weir/dp/059313...
Thanks so much for trying Readow and your feedback.
We will work on updating our model with new books more often.
Greetings