The teachings of the Qur'an is completely the way of life. Regardless which part of the globe one lives in, whoever practices, receives benefits. 

For example, the Qur'an teaches us how we came to this world, in the mother's womb, how the fetus continuously grows for a duration of nine months, and how precisely is the process of birth.

Also it teaches about the creator, and how he is taking care of us. It talks about the spirit of an individual. Manners and morals, how to live, and behave, in one's families, neighbors, parents, husband and wife. 

One finds solutions to life, how to run a business, how to perform a job, and how a boss should pay off there employees immediately. 

A complete introduction of the creator, and the hereafter, and life in the grave, the day of judgment, hell and heaven. And how Allah controls everything such as, the precise balance of the universe, or how even he controls a single atom. 

The Qur'an contains topics such as tests from Allah, things Allah likes and dislikes, unity, rewards for good deeds here and in the hereafter, and vice versa. To give favors to others, and to show it off. Morals and manners of an individual, such as manners of talking, gatherings ect. Financial aspects, freedom of religion, and how to seek repentance. Islamic laws, stories of past Prophets, such as Adam, Noah, Jacob, Abraham, Moses, Jesus ect. And about previous books such as the Torah, and the Bible.

The Qur'an also teaches the status of human beings, human rights. And how to obey one's leader, and Prophet. To have a peace of mind of an individual. 

This is only a small example of the hundreds of topics found in the Qur'an.

What is suggested is to see and put time in reading it. To learn many things, and find a complete solution of things which are unable to be explained, regarding a lifestyle. 

Whenever 100 thousand books are sold in the market, they are labeled as best sellers, one should not that they have been billions of copies sold of the Qur'an, one should open it and find out if it is a lie or the truth.