What is hotel management course?

The link doesn't work anymore. Could you please replace it? By the way, a hotel management course is a beneficial thing if you want to work in this domain. My brother has passed a couple of hotel management courses. Now, he knows all the most challenging details related to that job. He is working at https://grupoecoquintas.com/ . He got that job right after graduating from the University and passing those courses. And the best thing is that he has been working as a manager since day one, that's impressive! And here I am, still being a simple web designer.