Dependency injection and inversion of control example

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C#

ASP.NET-Core

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From definition:
> Inversion of Control (IoC) means to create instances of dependencies first and latter instance of a class (optionally injecting them through constructor)

is then it a good example of DI and IoC?
Meaning that I create instance in startup (IoC) and then inject it through constructor (DI)? I have hard time understanding IoC, but this seems to be the simpliest example.

also from this article https://auth0.com/blog/dependency-injection-in-dotnet-core/ it seems that

ILogger

is built in example, am I right?

What I have tried:

I have code in

Startup.cs

 public void ConfigureServices(IServiceCollection services)
{
   string connectionString = Configuration.GetConnectionString("DbConnection");
            services.AddDbContext<AppDbContext>(options => options.UseSqlServer(connectionString));
   services.AddControllersWithViews();
   services.AddScoped<IBooksService, BooksService>();
   services.AddScoped<IBooksRepository, BooksRepository>();
}

and e.g. controller:

 public BookController(IBooksService booksService, ILogger<BookController> logger)
{
  _booksService = booksService;
  _logger = logger;
}