Launch your Card Catalogue screen Lost Ark Gold and click the "Book" tab. Here, you'll find all the games' cards grouped under different books.
Card Books are kind of an upgraded version of the Card Set. Instead of providing power bonuses only when they are equipped (like Cards Sets), they grant much less powerful but permanent bonus points that are passive and do not require to purchase any equipment.
Because cards are collectibles, an entire Card Book is in essence a collection hunt. There are only 27 sets of cards available, however there are they have 173 books!
Best Card Sets from Lost Ark
The 27 decks in Lost Ark provide very useful bonuses and stats, and are amazing in their own ways However, some of the sets are far superior to the rest.