Add number of pages to create.
Although the book creating Skill is good, the content is well thought and made up, every instance and extra notes. While creating the book, when you for the email and number and the name of the author please also add how many pages would you want the book to be . Sometimes its so terribly long that one gets bored. Sometimes we need a short story , say 100 pages max or even 50 pages. Sometimes we need to create a comic series and not include a lot of details as it has to be shared with certain movie producers who need not be told every incidence and nuances. Limit on the number of pages would help