Since I was little I have liked books. Before I knew how to read, I explored them carefully. I supposed that they were hiding a treasure. A story tells that when an indigenous community learned about “books” for the first time, they believed that the book was like an oyster, because, like a mollusk, it hid a treasure. In books, I have found a vast space for exploration. Each of them implies a challenge and an adventure. One day, a teacher told me that if the book I wanted didn’t exist, I should make it. These exercises are an answer to that.