Guido I like both of your ideas relative to the submission quality assessment as well as that related to adult content. While the experienced user using a package such as K1K may be able to accurately gauge the confidence rating of the book, it sort of puts the cassual or beginning submitter in a pickle. Let the software provide the guidance which the submitter can choose to accept or override. Similarily, the system ought to alert the submitter that a category for the book hasn't been provided. While I don't think requiring a category assignment ought to be mandatory as some books may not fit one, the submitter ought to be prompted at least once reminding them of the fact they might have overlooked this item.