bookstoremodelclass

bookstoremodelclass.cs

// Book
public class Book
{
  public int Id { get; set; }
  public string ISBN { get; set; }
  public string Title { get; set; }
  public string Author { get; set; }
  public decimal Price { get; set; }
  public Address Location { get; set; }
  public Press Press { get; set; }
}

// Press
public class Press
{
  public int Id { get; set; }
  public string Name { get; set; }
  public string Email { get; set; }
  public Category Category { get; set; }
}

// Category
public enum Category
{
  Book,
  Magazine,
  EBook
}

// Address
public class Address
{
  public string City { get; set; }
  public string Street { get; set; }
}