This one book if you are troubled by the party organization

For each class, we will post recommended training patterns. There's plenty of information to make your favorite party, such as a class with good points and classification! Of course, the map is fully published all the floors up to 30F. Quests and missions are perfect!

Contents(from the "BOOK" database)
The effect of two recommended training patterns and each skill is explained by occupation. Introducing the conditions and how to solve all missions and quests. Detailed data on equipment, items, materials, valuables and monsters is available. The map of all the floors from the first hierarchy to the sixth tier, recorded together at the end of the book.