Since the need for Restricted Section Books has increased and Defense Against the Dark Arts Books have been added, we need new ways to obtain thse books. Spell Books are also, still an issue for some players, as well; since playstyle varies and some people enjoy traces more, while others enjoy fortresses more. Newer players are always going to be behind, due to being restricted by time limited event rewards. In order to get enough DADA books to fill the S.O.S tree would currently take 11.3 years, with 5 per Brilliant event.
In order to give players an ability to enjoy playing the different aspects of the game, we need a form of a book exchange.
I suggest the following conversions:
50 Scrolls = 1 Spell Book
500 Scrolls = 1 Restricted Section Book
10 Spell Books = 1 Restricted Section Book
50 Field Guides = 1 S.O.S Manual
500 Field Guides = 1 Defense Against the Dark Arts Book
50 S.O.S Manual = 1 Defense Against the Dark Arts Book