Level 1 covers the top-priority skill when abroad of being able to ask for help and information.

Level 2 covers how to give information, like talking about travel plans, about your sports interests, your house, your holidays.

Level 3 is all about socialising: the language you need for meeting and greeting people, describing people, eating out, offering to help people.

Level 4 is about organisational situations: sending and receiving messages, giving commands, keeping appointments, expressing thanks, dealing with money and possessions.

And so on . . .