Lenovo Tab 3 is just Android, right? What reader app do you use? Not sure how you set up your collections but on Moon Reader, I just filter by tag/subject.
Of course, make sure the metadata on the exported book is up to date by using either "Send to Device" or "Save to Disk" function instead of simply copying using Windows Explorer (or some other file manager). That or preprocessing the books with "Embed Metadata" or "Polish Book" so the Calibre library copy itself has updated metadata.
|