Many language teachers implement Extensive Reading in their classes in the knowledge that it will benefit learners’ language development. However, it can be difficult to create entire courses around ER, and some institutions require a compulsory textbook for each course. This presentation describes the development (and completion) of a four-skills coursebook seamlessly integrating an ER program through Xreading.com. The book is designed with a task-based approach and features engaging and relevant topics for learners.