Google Play Books have a new set of features for you to try out and help organize your digital shelves. These new beta features are currently only accessible on the web app. Just click on the Settings icon on the top-right corner to access the "Beta features" option.
Google describes these new features as:
The new features center on custom organization, which was pretty limited in the past. Before, it was only possible to arrange books by uploads, purchases, or finished status. Now, you can also create shelves to group your collections in the ways you want to. There are now sorting options according to the Author, Title, Last read, and Price.
Google warns that these features will "change over time as we continue to make improvements," and that these "features may lack a bit of polish; they might evolve, improve, disappear or transform into new Play Books product updates." If there are features you want to see or comment on these new ones, there is a Send Feedback option in the Settings icon, too.
Source: 9to5Google