Koob is a mobile e-book reader. The goal of Koob is to provide a more seamless reading experience. We expect there will be two main ways that Koob can promote reading. We first imagine Koob to be used within a classroom setting. We believe Koob can help a teacher in their courses by helping them digest the material. Our second motivation is to help those reading outside of a classroom setting. Koob will be easily accessible to anyone who wants to read a book. Anyone who is interested in reading new material, especially material with a lot of foreign words, can benefit from using Koob. They can benefit by getting help understanding words by using the definition lookup feature.