Permutation Notation

Victor has decided to rearrange his library at home. He has decided to group books by genre and arrange them alphabetically by genre, i.e. the first group on his shelf will consist of action and adventure books and the last group on the shelf will consist of science fiction books. The list below describes Victor's library.

• Action and Adventure books: $4$
• Drama books: $3$
• History books: $3$
• Horror: $5$
• Poetry: $1$
• Sci Fi: $2$

How many ways can Victor rearrange his library?