Currently, the language of the edition is specified in the market under the author when searching by the ISBN or title, and under the edition when you click the title. We propose that the language of the book be consistently displayed on all Rialto pages. There is no clear indication of the language on the page where we actually decide which edition to purchase (please see screenshot). The edition with the tag 'Purchased in Rialto' in the screenshot is actually a Russian title, even though the title is in English.
It would also be helpful to have an option to somehow highlight titles that are not in the main language of the institution.