A database is in first normal form if there are no repeated fields. That means that there must only be one field for each item of data you want to score. The library database described on the previous page is not in first normal form because it has the fields book1 , book2 , book3 , book4 , book5 , and book6 , which all store the same information, . the name of a book. First normal form not only facilitates searching, but is also more space efficient as there wouldn't be 5 empty fields being stored if borrowers only had one book.