Error in creating object

Question

I 've got an error under Book that tell me "Cannot instanciatie the type Book"
this is the method:
public Linked<Book> addBook(int serialNum, String title, String author,
                 String publisher, int publishDate, double price) {
           Book book = new Book(serialNum, title, author,
                         publisher, publishDate, price);
            tail = tail.addTail(book);
         return this;
}// addBook

Answer 1

I used a generic LinkedList then I created another class that extends the
LinkedList
public class BookManager<Book> extends Linked<Book>{
private Book head ;
private Linked<Book> tail;
         * Constructor
         * @param collection
public BookManager(Book head, Linked<Book> tail) {
         this.head = head;
         this.tail = tail;
}this is the Book constructor
public Book(int serialNum, String title, String author, String publisher,
               int publishDate, double price) {
          super();
          this.serialNum = serialNum;
          this.title = title;
          this.author = author;
          this.publisher = publisher;
          this.publishDate = publishDate;
          this.price = price;
     }