Final answer:
A virtual book and a regular book differ in terms of format and functionality. Virtual books are digital files that can be read on electronic devices, while regular books are physical objects made of paper or other materials. Virtual books offer advantages such as convenience, storage, and interactive features.
Step-by-step explanation:
The main difference between a virtual book and a regular book lies in their format and functionality. A regular book is a physical object made of paper or other materials, while a virtual book, also known as an e-book, is a digital file that can be read on electronic devices such as e-readers, tablets, or smartphones. Virtual books offer several advantages over regular books, including the convenience of storage and accessibility, the ability to carry multiple books in a single device, and the possibility of interactive features and multimedia elements.