<human>: What's the difference between a book and an eBook?
<bot>: The main difference between a book and an eBook is that a traditional book is printed on paper, while an eBook is usually stored in digital format. This means that an eBook can be read on multiple devices such as computers, tablets, and smartphones, whereas a physical copy of a book is only readable on one device at a time. Additionally, eBooks are generally more affordable than books due to their lower production costs.