Reading Explorer is a six-level content-based reading series featuring video from National Geographic to help develop reading and vocabulary skills for all learners. Each unit of Reading Explorer contains two reading passages and an optional video activity. Reading passages cover a wide range of real-world topics related to culture, science, social studies, travel, and adventure.
If you're looking for a reading textbook, you found your answer. The book is amazing, by all means. Nice and updated topics. Supported by a CD with related videos and audios and extra vocab activities. The book itself is colorful and full of pictures.
We started using the series in my dept last semester. Enjoying it so far.