Camera shots
Different camera shots are important as it helps add variety to the movie/show which can help people stay engaged and pay attention to what is going on. Also different types of shots can be used to accomplish something that another shot type couldn't, like how a worm's eye shot can be used to make someone look powerful.
Opening shots
Opening shots can help set the tone for the film and introduce the audience to the story and what will be happening in the film. For example in the first Kingsman movie the opening scene shows a group of skilled soldiers interrogating someone which goes wrong resulting in one of them dying which is a quick start to the action film and shows that anything can happen.
Establishing shots
Establishing shots are used to show the audience where what is going on is happening and can cover something as large as the country they are in or just the building and is normally in the form of drone shots of the area or a shot of the outside of the building/area. Sometimes directors will not use establishing shots the make the viewer feel more claustrophobic and unsure of the situation.
Extra long shots
Extra long shots are often used to show the character in the environment they are in and how it reacts to the character, for example the could be in a crowd of people or people may be avoiding them. They can also help the audience see more of the location they are in which could help them understand what is going on.
Long shot, Medium long shot and Medium shot
Long shots are shots that show off the the character's whole body but not too much of the surroundings, a medium long shot is a shot where it show everything above the character's knees and the medium shot shows everything above the character's waist. Each of these shots are usually used when the focus is on one character.
Dutch angle
Dutch angles are usually used to make the audience feel uneasy and disoriented and is often used in horror films. It can also be used to show a character isn't feeling well. The name come from the word "Deutch" which is German for German as this camera angle was first used in German expressionist films
Low angles
Low angles can be used to make the subject if the shot appear powerful and intimidating but can also be used to make the subject seem weaker which can be accomplished by showing them boxed in or by having the antagonist be the focus of the shot.
High angles
Medium close up, close up and extreme close up
Medium close ups normally shows everything from the chest up or a close up of something that shows a bit more of what is around it than a normal close up, a close up normally focuses on an entire persons face or and item or something like that and extreme close ups normally focus on a character's eyes or mouth which help show what the characters are feeling.
How to video camera angles
Most how to videos use camera angles such as an establishing shot to show the object, a angled shot of the product, a top down view of the item and an extreme close up on part of the subject.