Which is that book? vs What is that book?

Both phrases are correct, but they are used in different contexts. 'Which is that book?' is used when you are choosing between a limited number of options, while 'What is that book?' is used when you are asking for information about a specific book without implying a choice.

Last updated: March 25, 2024 • 1028 views

Which is that book?

This phrase is correct when you are choosing between a limited number of options.

This phrase is used when you are selecting from a specific set of options and want to know which one is the book in question.

Examples:

We have several books on the table. Which is that book?

Show examples from the web [+]

Which is easier, this book or that book?
- And Moloch is inside that book?
How many songs in that book?
Buffy, how's that book?
Buffy, how's that book?
Randall, did you tell Dad about that book?
- Have I read that book?
'Cause all those names in that book?
- What's the deal with that book?
I thought you wrote everything in that book?
How could you write that book?
Did you even read that book?
What's written in that book?
How many people knew this program was in that book?
Like when you wrote that book?
Where's his name written in that book?
Why does whitey love that book?
Jennifer, where'd you get that book?
Don't you ever get tired of reading that book?
What do you think is inside that book?

Alternatives:

Which book is that?

What is that book?

This phrase is correct when you are asking for information about a specific book without implying a choice.

This phrase is used when you want to know the title, author, or any other information about a book without suggesting a selection from multiple options.

Examples:

I saw you reading a book. What is that book?

Show examples from the web [+]

What is that, a book?
What is that, your book title?
What little book is that from?
- And Moloch is inside that book?
What is so important about this book?
How many songs in that book?
Buffy, how's that book?
Buffy, how's that book?
Randall, did you tell Dad about that book?
- Have I read that book?
'Cause all those names in that book?
- What's the deal with that book?
I thought you wrote everything in that book?
How could you write that book?
Did you even read that book?
What's written in that book?
How many people knew this program was in that book?
Like when you wrote that book?
Where's his name written in that book?
Why does whitey love that book?

Alternatives:

Can you tell me about that book?
What book are you reading?
What is the title of that book?
Who is the author of that book?

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Which is that book? vs What is that book?