Thank you for the suggestion. as for word lists, we provide the possibility to directly import word lists into your flashcards. If you have lists of words belonging to any of the books you need, then you just can copy paste them and add them to your own flashcards.
Additionally if you think it could be useful for other users you also can publish your lists so that they can be viewed by other users. That is the way that the large amount of word lists related to books has been created.