First find the cost per member of the hardcover books: $30/book * 6 books = $<<30*6=180>>180.
Then find the cost per member of the paperback books: $12/book * 6 books = $<<12*6=72>>72.
Then find the total cost per member: $180 + $72 + $150 = $<<180+72+150=402>>402/member.
Now find the total amount of money by multiplying the cost per member by the number of members: $402/member * 6 members = $<<402*6=2412>>2412.
#### 2412