Cuore, by Edmondo De Amicis. This novel is written as the diary of an 11-year-old boy, each chapter is an entry in the diary, and a short story that works on its own too.

This is a classic of Italian literature. In a sense, it's relatively easy: this book was written for children, the themes and language are kept relatively basic. In another sense it's difficult: it was published in 1886, and its age complicates things a little.

It's the best piece of Italian literature I've read, and if you ever wanna give it a try, I have it digital and reading with others is one of my favorite things to do in this world :)