Передача коллекции объектов модели (ASP.NET MVC 5)

[HttpGet]
public ActionResult Add()
{
    return View(db.Books);
}
 
[HttpPost]
public string Add(IEnumerable<BookStore.Models.Book> books)
{
    return (books.ElementAt(0).Name.ToString());
}

@model IEnumerable<BookStore.Models.Book>
 
@using (Html.BeginForm())
{
    for (int i = 0; i < Model.Count; i++)
    {
        <h4>Книга № @i</h4>
 
        @: Name: @Html.EditorFor(m => m.ElementAt(i).Name)
        @: Author: @Html.EditorFor(m => m.ElementAt(i).Author)
        @: Price: @Html.EditorFor(m => m.ElementAt(i).Price)
     }
    <input type="submit" />
}

[HttpPost]
public string Add(BookStore.Models.Book book)
{
    return (book.Name.ToString());
}

@model List<BookStore.Models.Book>
 
@using (Html.BeginForm())
{
    for (int i = 0; i < Model.Count; i++)
    {
        <h4>Книга № @i</h4>
        @: Name: @Html.EditorFor(m => m[i].Name)<br/>
        @: Author: @Html.EditorFor(m => m[i].Author)<br />
        @: Price: @Html.EditorFor(m => m[i].Price)<br />
    }
    <input type="submit" />
}

[HttpGet]
public ActionResult Add()
{
    return View(db.Books.ToList());
}
 
[HttpPost]
public string Add(List<BookStore.Models.Book> books)
{
    return (books[0].Name.ToString());
}