Right after finishing my PhD in Computer Science, I founded Black Whale Technology Inc., a software company focused on designing high-quality apps for children. Drawing my inspiration from my children, I am the idea generator behind the apps. The first version of the Feelu app was released to the App Store in May 2019. We got lots of positive feedbacks from the app. About a year later, the Feelu book was available on several online stores. I believe my children are the best teachers I have ever had. Through the ups and downs of motherhood, I have learned that exploring feelings is essential to happiness. Feelu is a full package of fun activities that help children be happier and calmer. I hope the little ones enjoy reading this book over and over.