你认为这本书怎么样用英语怎么说

你认为这本书怎么样
1.What do you think of this book
2.How do you think this book?
3.What do you regard for this book?
解析：
what do you think你认为呢；你觉得如何
例句
What do you think of the life?
你们认为的人生是如何的呢.