AR can be a valuable asset and technology in multiple fields. In this section, we will learn how it is being used in sectors such as industry, marketing, retail, and tourism. In the first case, we will learn how industry 4.0 has put AR in the spotlight, since it's the natural interface for the human-machine interaction in areas such as production, maintenance, training, and more.

This section's main objective is to give you a better insight into how to apply AR in your own projects before you start to code. This way, you will be able to adapt the examples in this book to your own needs. 

Let's start introducing the uses of AR in the industry field.