// Print out the book info (title, price).
            // Indenting this would be nice
            public void Print()
            {
                LinkedListNode current = front;

                while (current != null)
                {
                    Console.WriteLine("Title: " + current.GetTitle());
                    Console.WriteLine("Price: $" + current.GetPrice());
                    current = current.GetNext();
                }
                Console.WriteLine();
            }