The most common view. It shows subjects as we would expect to see them in reall life.
A high angle shows the subject from above, i.e. the camera is angled down towards the subject. This has the effect of diminishing the subject, making them appear less powerful, less significant or even submissive.
The scene is shown from directly above. This is a completely different and somewhat unnatural point of view which can be used for dramatic effect or for showing a different spatial perspective.
In drama it can be used to show the positions and motions of different characters and objects, enabling the viewer to see things the characters can't.
The bird's-eye view is also very useful in sports, documentaries, etc.
Sometimes the camera is tilted (ie is not placed horizontal to floor level), to suggest imbalance, transition and instability (very popular in horror movies). This technique is used to suggest POINT-OF-View shots (ie when the camera becomes the 'eyes' of one particular character,seeing what they see — a hand held camera is often used for this.
Framing or shot length
Extreme long shot