There are many ways for groups of people to make decisions about how they should live together. These are called "forms of government".
One form of government that you might have heard of is called "democracy". This means that the people who live in a place get to vote on who will make the rules for how they will live.
Another form of government is called a "monarchy". In a monarchy, there is one person who has all the power. This person is usually a king or a queen, and they got their power because they were born into a royal family.
A third form of government is called a "dictatorship". In a dictatorship, one person has all the power, but they usually get it by taking it from others. This person is usually very mean and doesn't care about what other people need or want.
There are many other forms of government too. Some places have a "republic", where people vote to choose leaders who will make decisions for them. Others have a "theocracy", where religious leaders make the rules.
Each form of government has its own strengths and weaknesses. Some forms of government are better at making sure that everyone is treated fairly, while others are better at making quick decisions. It's up to the people who live in a place to decide what form of government they want to have.