using System;

using System.Collections.Generic;

​

public class Program

{   

    public static void Main()

    {

        List<string> Titles = new List<string>(new string[] { "title1", "title2", "title3" });

        List<Book> Books = new List<Book>(Titles.Count);

        for (int i = 0; i < Titles.Count; i++)

        {

            Books.Add(new Book(Titles[i], string.Empty));

        }

        Console.WriteLine(Books[0].Title);

    }

}

​

public class Book

{

    private string mTitle;

    public string Title { get { return mTitle; } }

    private string mAuthor;

    public string Author { get { return mAuthor; } }

    public Book(string _title, string _author)

    {

        this.mTitle = _title;

        this.mAuthor = _author;

    }

}