Explicit Loading with EF Core

BooksService.cs

public void GetBooksWithExplicitLoading()
{
  var books = _booksContext.Books.Where(b => b.Publisher.StartsWith("Wrox"));

  foreach (var book in books)
  {
    Console.WriteLine(book.Title);
    EntityEntry<Book> entry = _booksContext.Entry(book);
    entry.Collection(b => b.Chapters).Load();

    foreach (var chapter in book.Chapters)
    {
      Console.WriteLine($"{chapter.Number}. {chapter.Title}");
    }

    entry.Reference(b => b.Author).Load();
    Console.WriteLine($"author: {book.Author?.Name}");

    entry.Reference(b => b.Reviewer).Load();
    Console.WriteLine($"reviewer: {book.Reviewer?.Name}");

    entry.Reference(b => b.Editor).Load();
    Console.WriteLine($"editor: {book.Editor?.Name}");
  }
}