questions for librarian

even though i have already had a session with the librarian, i still had three question before i cam into the session that now are resolved:
1. how do u get a book that says checked in? ans. Recall
2. How to figure out where the book is depending the numbers and letters given in the book number under details in iris search? still unresolved
3. what exactly is ezborrow? ans.books that has electronic access
4. is it good or bad to use recent data and articles to write a book? ans. depends on your topic and how much time period do u want in order to narrow your search.
5. what happens after 28 days of keeping a library book with you? do they email you and warn you or just start charging you? ans. if someone recalls the book they ask you to return it but if you still delay then you get charged and warnings and if noone recalls it you can have it until they do the inventory. the library session was def. very useful as it answered most of my questions.