We’re experiencing a couple of glitches with books and ebooks on Summon at the moment. Serials Solutions is aware of the problems and is working to resolve them.
Firstly, selecting the “eBook” content type returns both ebooks and some print books. A temporary fix is to also select the “Items with full text online” option.
Secondly, sorting books by “Date (newest)” or “Date (oldest)” isn’t working correctly.