Auditory learners take in written information better if they hear it as they read along. Audio helps them stay focused because their brains are able to give more attention to the text. And because rereading and pauses are greatly reduced, they cover more ground in less time — which is encouraging for them and gives them more confidence as scholars.
A good general science textbook. I enjoyed some chapters more than others. The first module was a bit long and boring as it flew through major scientific discoveries but got better after that.