Really Simple WordPress Queries

When I was learning about WordPress and how to manipulate data, it seemed like everyone had an opinion on how to do what is actually very simple queries. Take for example; Running a custom query to get posts from a certain category. If you were to Google that you would be returned with pretty much thousands of example code, some working, some not. My 2 pence; Its this simple:

have_posts()) : $bloggy->the_post();?>